TikTok's algorithm has changed the way hits are made

TikTok isn't factored into a song's rank on the Billboard charts, but it can have an impact

Billboard ranks a song's chart position based on its radio airplay, its physical sales, and its streaming numbers (across Spotify and other platforms), but doesn't include user-generated content, meaning it doesn't include TikTok videos. Keith Caulfield, Billboard's managing director of charts and data operations, notes that TikTok still has an impact, though, because listeners will often stream the app's most popular songs on other platforms.

TikTok is resurrecting sampled songs

Rapper Doechii's song "Anxiety" has become a bona fide chart hit. Interestingly, its popularity on TikTok propelled Gotye's "Somebody I Used to Know" (the song Doechii's song samples) and Sleep Hallow's "A N X I E T Y" (a song that samples the Doechii song) onto the charts as well.

Music today is often intended to circulate on social media

Artists are increasingly using TikTok and other short form video platforms as a space to promote their music. One scholar notes this emphasis, and connect it to Taylor Swift's early use of social media to promote her own work and brand.

Why TikTok's algorithm is likely driven by what you linger on

While the inner workings of the engine driving the vast majority of the app's engagement remain a secret, it is understood to rely heavily on what content users spend the most time watching rather than swipe past. Experts believe the app can develop user profiles robust enough for its algorithm to consistently match engaging content to in as little as two hours.

Billie Eilish and TikTok helped inspire a bossa nova resurgence

Eilish's 2021 song "Billie Bossa Nova" along with a handful of other younger artists, like Laufey and Beabadoobee, have inspired Gen Z's interest in the genre, with the music soundtracking tens of thousands of videos on TikTok.

How TikTok ate the internet

TikTok is now deeply integrated into American culture, thanks to the app’s powerful algorithm and focus on entertainment which have influenced popular trends and social media content consumption in the US. This immersive piece highlights TikTok’s role in helping shape everything from music to fashion and even politics in the US—while its connection to China has also drawn scrutiny and raised national security concerns.

TikTok's personalized algorithm activates the brain's reward system

A 2025 Washington Post study found that 75% of the TikTok users it studied nearly doubled their time spent on the app within a month. Experts in design and psychiatry say this is due to the app's interface and algorithm, which, after learning about the user's preferences, recommend videos more likely to activate that person's dopamine reward system than non-personalized suggestions.

Several major artists have embraced manipulating the Billboard charts

Billboard is supposed to be an accurate, objective representation of the country’s listening habits, but artists and their fans have discovered ways to manipulate the magazine’s methodology in order to push tracks to the top of the charts. In 2018, Taylor Swift rewarded fans for purchasing her album multiple times; in 2020, Justin Bieber reposted suggestions that fans repeatedly stream one of his songs while they sleep.

TikTok explained: how the app became a global phenomenon

Since 2018, the short-form, video-sharing app TikTok has gone from launching in the US to becoming a habit-forming cultural force that’s signed up more than half of the country's population as users.

TikTok can turn everyday users into stars

TikTok is such a cultural force, it’s now a platform for turning ordinary users into stars. This "Planet Money" podcast episode performs a deep dive into how Tai Verdes went from working a day job and dreaming of becoming a successful musician to using TikTok to gain a following.

TikTok is one of the fastest-growing social media platforms of all time

Centered around user-generated short videos, the platform was created by the Chinese technology company ByteDance Ltd. With over 1.8 billion users, the app has become a global force.

Viral pop artists create systems of participation, not just music

Musicologist (and Swift expert) Paula Clare Harper weighs in on the factors that make music go viral. Tracks designed for shareability that feed well into content algorithms on streaming platforms are able to grow in popularity, with traditional human gatekeepers sidelined.

Most memes now begin on TikTok

The website Know Your Meme looked at the data for 700 to 1,400 memes uploaded to the platform each year from 2010 to 2022. In 2010, a majority of memes began on YouTube (34%) or 4chan (28%), but by 2022 most were starting on TikTok.

Billboard began incorporating streaming in 2007

For nearly 50 years, the Billboard charts primarily relied on radio airplay and retail sales. But in 2007, the magazine began incorporating early streaming services AOL Music and Yahoo! Music into its methodology, and later worked with Spotify, YouTube, and other platforms. A single stream was not weighed as heavily as a purchase of a physical CD or vinyl record. Still, streaming’s impact became evident when songs with minimal radio airplay began climbing the charts, as seen with Baauer’s “Harlem Shake,” which did exceptionally well on YouTube.

TikTok's 'sonic logo' imprints the app's identity across platforms

As the app's popular videos spread to other platforms like Instagram and Reddit, the company sought a way to alert viewers that the content originated on TikTok. They decided on the sonic logo that now acts as a bumper on all of its shared videos, to attract users.

How to read the news on TikTok

There's plenty of news on TikTok, but that doesn't mean it's all reliable. This guide, written by a communication technology professor, breaks down the ways the app's algorithm delivers news. It also covers how users can determine whether or not a story is factual or misleading. Most strikingly, the professor warns readers that if they didn't search for a TikTok video, then "it probably found you."

A timeline and visuals on TikTok's rapid growth

The app that would become TikTok is known as Douyin in China, and this article recounts its history, acquisition of rival Musical.ly, and rebranding ahead of its lightning growth. One visualization shows how quickly TikTok reached 1B users.

Less than half of TikTok's US users have posted a video

Like most platforms, content is driven by a small number of active users—in TikTok's case, 25% of accounts are responsible for an estimated 98% of content posted.

Social media algorithms are shaping real-life language through memes

The evolution of the internet in the early 2000s supercharged the creation and spread of memetic content. Now, highly tuned algorithms on platforms like TikTok and YouTube influence the language, phrasing, and content of creators, which shapes how we use language in the real world.

In 2025, 'Walk My Walk' by Breaking Rust, an AI-generated artist, topped a Billboard country chart.

TikTok boasts nearly 1.8B monthly users

The app has surged in popularity recently, with usage surging during the COVID-19 pandemic. Those users have generated high revenues, too, with over $23B in 2024.

Understanding TikTok-owner ByteDance's business model

ByteDance has ridden TikTok's major success to become the world's most valuable startup. This deep dive showcases some of the company's smartest moves and tactics, and where it's headed next.

YouTube no longer provides data to Billboard

Billboard began using data from YouTube in 2013, tracking the platform’s most popular songs as it became a hub for listeners. That relationship ended in January 2026, when YouTube announced it was ending the partnership, citing a disagreement over how Billboard weighted premium users more heavily than free users.

TikTok intentionally keeps users scrolling, something researchers have found makes it more addictive than other short-form video platforms.

Billboard’s Hot 100 methodology is notoriously private

The magazine’s singles chart is based on on-demand streams (from platforms like Spotify), digital sales (from stores like iTunes), and radio airplay. Not all of those sources are weighted equally, though—sales are more important than airplay, and airplay is more significant than streams. In 2018, Billboard began weighing streams from premium subscriptions more heavily than free streams (like listening to a song on Pandora).

TikTok's top 10 users have over 1B followers

Influencers like Charli D'Amelio and MrBeast, as well as more traditional stars like Dwayne "The Rock" Johnson, produce content that keep people scrolling.

Country's sound continues to evolve

Country music is having a moment. In 2023, it saw the biggest growth in market share of any genre—up nearly 22%. This overview traces country’s rise from Appalachian folk roots to its current pop, rock, and hip-hop-infused wave, with artists like Beyoncé and Post Malone joining the mix.

TikTok is transforming the English language

Linguists like Adam Aleksic have argued that the way internet slang—especially the kind that thrives on TikTok—enters the real world isn’t so different from how English evolved in its earliest days.

A technological breakthrough altered how Billboard determined what was popular.

Why TikTok loves Rainer Maria Rilke

It seems like an odd fit: A social media app known for bite-sized videos and a long-dead Austrian poet. Despite the odds, Rilke, especially his famous "Letters to a Young Poet," has become an unexpected trend on TikTok, where influencers share his wisdom on creativity and self-discovery.

How Spotify creates niche genres

One of Spotify's most recognizable features is its playlists. The provider offers an endless stream of strangely titled mixes with names like "Hyperpop," "Phonk," and "Lorem," which suggest uniform genres and scenes despite featuring seemingly random assortments of artists and songs. This article unpacks why Spotify organizes its music in this way and how, unintentionally, the process erases organic movements that developed outside of the app.

Streaming helped propel Bad Bunny to the top of the charts

For decades, labels believed Spanish-language artists had to sing in English to break into the mainstream. Metrics on YouTube and Spotify, though, have shown that listeners are interested in artists like Bad Bunny, who have intentionally made music in Spanish and have become immensely popular.

2025 marked the first time in 35 years a hip-hop song wasn't in the top 40

The Billboard Hot 100 chart dated October 25, 2025, didn't have any rap or hip-hop songs in its top 40 singles, something that hadn't happened since Feb. 2, 1990. One explanation is a Billboard methodology change, and another is Taylor Swift's "The Life of a Showgirl."

The first social media platforms date back to the late 1990s, and their algorithms were typically chronological, with entities like MySpace and Facebook feeding users content from the most recent posts to the oldest.

The surprising and strange sources behind 12 famous songs

Britney Spears's "Toxic" borrowed strings from a 1981 Bollywood film, Billie Eilish sampled The Office, and one duo made an entire album using only the sounds of their Whirlpool washing machine. Explore how sampling can pull from pretty much anywhere.

TikTok CEO Shou Zi Chew on its future

TikTok CEO Shou Zi Chew dives into how the trendsetting video app and cultural phenomenon works, from what distinguishes its algorithm and drives viral videos, to the challenges of content moderation and digital addiction in this wide-ranging conversation with the head of TED, Chris Anderson.

TikTok is changing the building trades

Plumbers, welders, and general contractors are meeting their customers on TikTok. This article delves into the growing group of tradespeople documenting their work (and advertising their services) on the popular app. The profiled workers are convinced this is the new way to sustain a life in the trades.

Why romantasy is so popular on social media

Much of romantasy's success is thanks to social media, especially TikTok, where posts tagged as #BookTok or #Romantasy often propel titles to mainstream popularity. This deep dive into the trend interviews fans and marketers to explain why the genre's steamy content does so well online.

TikTok doesn't exist in China

TikTok is owned by the Chinese company ByteDance Ltd., yet only the platform’s sister app Douyin is available in China. That's because the Chinese government regularly censors Douyin—something ByteDance likely believes would degrade TikTok, its international app.

The TikTok sale went through in January 2026

The app's ownership is now majority American, though TikTok CEO Shou Chew, who is Chinese, remains on the board of directors. It's unclear what, if anything, has changed for American users, as the company has historically kept the specifics of its algorithm a secret.

Superfans of K-pop group BTS gamed the Billboard chart

In 2021, the boy band scored a number one hit with “Butter,” its second English-language track. As Stereogum writer Tom Breihan points out, though, it rose to the top of the charts without actually being the most popular song in the country. Other songs were considerably more popular on streaming platforms, but BTS’ hyperdevoted fanbase realized that purchasing digital downloads weighed more heavily in Billboard’s methodology. Recognizing an opportunity, BTS dropped the price of a download to 69 cents, securing their place on the top of the charts.

How the YouTube algorithm works, according to MrBeast

In this brief interview clip, the YouTube savant "MrBeast" summarizes how the YouTube algorithm—which he relies on to make his content go viral—actually works.

Why Robyn's 'Dancing on My Own' became an anthem

Robyn's "Dancing on My Own," was a low-key hit when it was released in 2010, but it's become an anthem in the time since then, influencing artists like Lorde and Charli xcx and inspiring an iconic scene on HBO's "Girls." This article breaks down why that is, studying the song's beats per minute, which match humans' typical walking pace, and the queer experience reflected in its lyrics.

How to catch a TikTok thief

Someone took a 10-second clip of a parody video made by Hugh Clegg and posted it to TikTok, where it racked up millions of views. The uncredited clip meant viewers assumed it was owned by the uploader, an assumption Clegg was eager to rectify. His messages and comments had no real effect outside of earning him temporary bans for "spamming." So he decided to moonlight as a private eye.

Fleetwood Mac's 'Dreams' reentered the pop charts thanks to a viral video

In 2020, a man from Idaho named Nathan Apodaca filmed himself drinking cranberry juice while skateboarding and mouthing along to Fleetwood Mac’s “Dreams,” a hit from their 1977 album “Rumours.” The video’s popularity on TikTok introduced the song to a younger generation (and reintroduced it to older ones). In turn, listeners sought it out on streaming platforms, sending it back into the Hot 100.

Inside the rise of focus music

Any casual YouTube or Spotify user has likely stumbled upon a playlist called "lo-fi beats to study and relax to" while searching for new music. Those "lo-fi beats" actually represent a growing genre of music called "focus music." Spotify, for instance. saw a 50% increase in listening time for focus playlists in its 2023 Wrapped report. This article explains why productivity tunes are on an upswing right now. Read it here.

Roughly 62% of US adults under 30 say they use TikTok

A Pew Research Center publication reports that most members of Gen Z use the app. That's significantly more than other age groups: 39% for those ages 30 to 49, 24% for those 50 to 64, and 10% for those 65 and older.

Meta has added video features to attract more young users to Facebook

Amid an aging userbase and competition from newer social networks like TikTok, Facebook has seen its perceived relevance and cool factor progressively decrease. The Local tab and dating features are among several efforts to counter this perception.

Hip-hop gained significant popularity in the 21st century, dominating Billboard's pop chart.

Some critics say comparing chart rankings across decades is meaningless

Although Billboard’s charts are presented as objective measures of a given song’s popularity, the company’s changing methodology (alongside changes in technology and listener habits) has made weighing chart success from different eras an imperfect science.