Exclusive: Katy Perry, John Mayer Debut Music Video

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Exclusive: Katy Perry, John Mayer Debut Music Video

Exclusive: Katy Perry, John Mayer Debut Music Video
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Exclusive: Katy Perry, John Mayer Debut Music Video

by ABC News Videos 4:11 mins

Perry and Mayer premiere the video for "Who You Love" duet on "GMA."

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