Not long ago, trends were born on magazine covers, late-night TV, and radio playlists. Today, many of them start in a 30-second clip filmed in someone’s bedroom. TikTok has become the place where songs get discovered, books turn into bestsellers, products sell out, and slang spreads around the world overnight. With around 2 billion monthly active users after passing that milestone in early 2026, the app no longer just reflects culture. It sets the agenda.
An Algorithm Built for Discovery
The secret behind TikTok’s influence is the For You feed. Older platforms mostly show posts from accounts you already follow, while TikTok serves videos based on what you watch, replay, and share. A creator with zero followers can reach millions of viewers if the content connects. Record labels, publishers, and TV producers still matter, but they now often follow the audience instead of leading it.
The format helps too. Reusable sounds, duets, and stitches make it easy to join a trend rather than simply watch it. A dance, a joke, or a recipe can be copied and remixed thousands of times in one afternoon, and every new version pushes the original further. Words like “rizz” and “delulu” went from niche comment sections to dictionaries largely because they spread so quickly on the app.
Rewriting the Rules of the Music Industry
Music is where TikTok’s power is most visible. According to the company’s Music Impact Report, 84% of songs that entered the Billboard Global 200 in 2024 went viral on the app first. TikTok also says eight of the ten Billboard No. 1 hits of 2025 had a viral moment there before reaching the top. Olivia Dean’s “Man I Need” is a good example: it racked up over a million videos on its way into the Hot 100 top five.
The app is also shrinking the gap between a viral clip and a stream. Its Add to Music App feature, which saves a song straight to services like Spotify, passed 6 billion track saves in the twelve months ending April 2026. Labels now plan releases around teaser clips and hook-friendly choruses built to travel.
From BookTok to the Checkout Button
TikTok’s reach goes far beyond music. The #BookTok community has revived older novels and turned debut authors into household names. More than 50 million BookTok-recommended books were sold across Europe in a single year. In March 2026, TikTok expanded its BookTok bestseller lists to six markets, including the UK, Germany, Spain, and Italy.
Shopping is the next frontier. TikTok Shop generated an estimated $15.82 billion in US sales in 2025, then roughly doubled year over year in the first half of 2026. eMarketer expects about $23.4 billion in US sales for 2026, which would put it ahead of Target’s online business. “TikTok made me buy it” is now a real retail force, sending skincare, kitchen gadgets, and fashion pieces flying off virtual shelves.
Surviving the Ban Threat
For a while, TikTok’s future in the United States looked shaky. That uncertainty ended in January 2026, when a majority American-owned joint venture took over US operations. Oracle, Silver Lake, and MGX are its managing investors, and ByteDance kept a 19.9% stake. The new company retrains the recommendation algorithm on US data, and so far the platform’s cultural momentum has held steady.
What Comes Next
TikTok’s real achievement is shortening the distance between a fan and a phenomenon. Trends that once took months to build now take days, and ordinary users have a direct hand in deciding what becomes popular. Brands, film studios, and even politicians now use the platform to test what audiences will embrace. Whether it is a song, a novel, a lip gloss, or a catchphrase, the road to mainstream success increasingly runs through the For You page. As long as people keep scrolling, creating, and sharing, TikTok will keep shaping what the rest of pop culture talks about next.
