133 million (!) 'Musers' can't be wrong, as the lip-sync-app-meets-social-network mints overnight stars and sweeps middle schools, Silicon Valley and the record industry itself. Says one label CEO: 'It's where the kids are'
40 Under 40 - The most powerful execs changing the game
Sony's New Era - Stringer succeeds Morris, but who will run Columbia?
On the Cover: Musers Dani Perkins, Ariel Martin, Deven Perkins and Jacob Sartoriusl top Musical.ly exec Alex Hofmann