Musical.ly -- the video-based app that lets users create lip sync and dance videos -- has more than 133 "Musers" worldwide (including half of American teens). But there are still a lot of people who don't know how to use it. So who better to ask for a tutorial than the top 3 Musers on Musical.ly?
In the video above, Billboard cover stars Baby Ariel, Jacob Sartorius, Dani Perkins and Deven Perkins break down how to master Musical.ly. And for good measure, they lip sync a little bit of Spice Girls' "Wannabe," too.