Justin Bieber on stage

Justin Bieber on stage at Summertime Ball 2010

1. 

   1. Justin Bieber joins Usher on stage

   The first appearance of Justin Bieber and the first big scream of the day! Justin joins Usher and Will.i.am for an early boogie.

2. 

   2. Usher and Justin Bieber

   Usher and Justin Bieber on the Wembley stage

3. 

   3. Usher was joined by Justin Bieber

   Not content with introducing Will.iam to proceedings, Usher invited Justin Bieber on stage for a dance during his final song, OMG

4. 

   4. Usher, Bieber & Will.i.am 1

   Usher, Justin Bieber and Will.i.am amidst the ticker-tape maelstrom

5. 

   5. Usher and Justin Bieber embrace

   Usher and Justin Bieber embrace at the end of Usher's set. But Bieber will be back...

7. 

   6. Justin Bieber

   Mind the hair! Justin Bieber caps off an immense performance

8. 

   7. Justin Bieber

   A man of many talents, the guy can even play the drums. Quite why he looks so scared we couldn't say

9. 

   8. Justin Bieber

   There was One Less Lonely Girl in the crowd after this life-affirming moment

10. 

    9. Justin Bieber

    Allegedly getting his hair cut before every TV appearance, Justin Bieber didn't disappoint Wembley or his barber with this performance

11. 

    10. Justin Bieber

    Justin Bieber gives the crowd an impromptu skateboard lesson

13. 

    11. Justin Bieber

    One day the Whitehouse, the next the Summertime Ball 2010. Justin Bieber only gets the best gigs

14. 

    12. Justin Bieber

    Justin Bieber on stage at Summertime Ball 2010

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