It's a known fact that Usher discovered Justin Bieber. In related news, millions of girls around the world should thank Usher.
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This is a cute shot of Justin Bieber at the 2010 Wango Tango concert. He later performed at the May 2010 event.
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Courtenay Semel is not exactly an A-list celebrity. But she still finagled an invite to the 2010 Wango Tango concert.
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We guess Roxy Olin is considered a celebrity in this day and age. That's very sad.
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Justin Gaston formerly dated Miley Cyrus. He still shows up for red carpet events, though, such as the Wango Tango concert in Los Angeles.
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Ryan Seacrest looks smooth and handsome on the red carpet of the Wango Tango concert. He works for KISS FM, who sponsored the event.
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Ashley Greene showed up at the KISS FM Wango Tango concert. She didn't play any songs. She just watched the show.
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Kendall Jenner wants to follow in the footsteps of Kim Kardashian. We think that's a terrible idea.
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Kylie Jenner was one of several celebrities on the red carpet of the Wango Tango concert. If you can call her a celebrity, that is.
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Adam Lambert performed at the KISS FM Wango Tango concert on 5/15/10. Beforehand, he paused and smiled for photographers on the red carpet.
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Adam Lambert looked more normal than usual in this red carpet photo. We sort of miss his spikes and sparkles.
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Ke$ha showed up at the Wango Tango concert with a guest in hand. We're not sure what his name is.
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