Before MGK hit the stage he shared his excitement over the momentous occasion with his Twitter followers.
This is about to be the biggest 1 minute and 30 seconds of my career so far...I'm thinking of all you guys right now. Be proud. Lace Up!!!- Machine Gun Kelly (@machinegunkelly) April 2, 2012
Diddy introduced the Ohio native in front of the packed house before he went into his track "Invincible" featuring Ester Dean. The latter wasn't in attendance and singer Skylar Grey took her place, crooning through the chorus.
That was seriously surreal...my mentor introduced me and we're fighting for the underdog.- Machine Gun Kelly (@machinegunkelly) April 2, 2012
Rhymer Flo Rida opened up for The Rock, rapping through his Avicii-inspired hit "Good Feeling" and "Wild Ones."