Wiz Khalifa, Afrojack Will Headline Forbes' Under 30 Music Festival, Kickoff Under 30 Summit

It’s not often that you can say without hyperbole that an event will kick off with a literal roar. But when you combine Afrojack, one of the world’s most sought-after DJs, Wiz Khalifa, one the world’s preeminent hip-hop artists, and 5,000 or 6,000 revelers, the Under 30 Music Festival – the kickoff to the first-ever Under 30 Summit – should have Philadelphia rocking.