20. Justin Bieber
22. Christina Aguilera
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 Ashley Cole Photo: Landov
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 Chester Bennington and Mike Shinoda Photo: Landov
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 Lance Bass Photo: Getty Images
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 Carly Rae Jepsen Photo: Getty Images
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 Cyndi Lauper Photo: Getty Images
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 Ke$ha Photo: Getty Images
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 Jordin Sparks Photo: Getty Images
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 Jenny McCarthy Photo: Getty Images
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 Heidi Klum Photo: Getty Images
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 Jennifer Morrison Photo: Getty Images
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 Lucy Hale Photo: Getty Images
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 Pink Photo: Getty Images
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 Carrie Underwood Photo: Getty Images
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 PSY Photo: Getty Images
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 Taylor Swift Photo: Getty Images
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 Gwen Stefani Photo: Getty Images
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 Chris Brown Photo: Getty Images
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 Elisha Cuthbert Photo: Getty Images
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 Hayden Panettiere Photo: Getty Images
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 Justin Bieber Photo: Getty Images
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 Nicki Minaj Photo: Getty Images
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 Christina Aguilera Photo: Getty Images
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 Kelly Rowland Photo: Landov
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