iHeartRadio LIVE: Neon Trees

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iHeartRadio LIVE: Neon Trees

WATCH: Katy Perry plays 'Who Knows Katy' with fan on 'Kimmel'

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WATCH: Katy Perry plays 'Who Knows Katy' with fan on 'Kimmel'

POP PICS

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POP PICS

LISTEN: Tiesto releases new single featuring Matthew Koma 'Wasted'

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LISTEN: Tiesto releases new single featuring Matthew Koma 'Wasted'

Drew Barrymore welcomes daughter Frankie!

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Drew Barrymore welcomes daughter Frankie!

WATCH: Katy Perry goes undercover for 'Birthday' music video

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WATCH: Katy Perry goes undercover for 'Birthday' music video