Singers Usher & Justin Bieber attended the 2010 Capital FM Radio Summertime Ball over the weekend (Sun. Jun 6) in London, England.

Usher later hit the Wembley Stadium stage for an energetic performance of his #1 hit single “OMG” and was joined by the track’s guest artist Will.i.am and his young protege Justin Bieber.

Check out a few pics of Usher and Justin on the red carpet of the Capital Radio Summertime Ball below and peep video footage of Usher’s star-studded “OMG” performance when you continue reading…