@wallstreetjournal: ByteDance, the company that owns TikTok, bought an app called Musical.ly 5 years ago. Head to the free link in our bio to read our interviews with creators and current and ex-TikTok employees about its stratospheric rise. 🎥: @bellapoarch, @jalaiahharmon 📷: Reuters (2) #musically #tiktok #wsj #wallstreetjournal #thewallstreetjournal