Justin Bieber & Usher Rock Out At Manager's Birthday Party
June 19 2011, Published 4:15 a.m. ET
Breaking Celebrity News Staff Reporter
It pays to be on Justin Bieber's team.
Bieber's manager, Scooter Braun, threw a 30th birthday bash in Hollywood on Saturday night and Breaking Celebrity News got exclusive video and photos of the party.
Usher and Bieber gave a duet performance to Yeah! while Bieber banged away on the drums and then the two introduced surprise guest and 90's legend, MC Hammer.
The party's carnival theme featured contortionists, tarot card readers, fire throwers, a beer pong tournament and pole dancers.