4. Adam Levine
6. Usher
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 Adam Levine with the birthday boy, Scooter Braun. |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 The Biebs himself performs at Scooter’s 30th birthday party. |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 MC Hammer even stopped by to perform! |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 Adam Levine |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 Justin Bieber |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 Usher |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 Justin Bieber |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 Justin Bieber |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 Justin Bieber |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 Adam Levin performs for the birthday boy. |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 image005.jpg |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 Usher and Justin |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 image006.jpg |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 image008.jpg |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 Paris and Nicky Hilton |
PHOTOS: Justin Bieber, Usher and More Perform at Scooter Braun’s Birthday Party
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 Paris Hilton |
