Katy Perry and John Mayer Duet on 'Who You Love' - Music News, John Mayer, Katy Perry : People.com

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, Perry, 28, tells SIRIUSXM's Morning Mash Up "that's just a love giggle. It's like the ones that Mariah Carey had in 1990," she jokes. "I was going for

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-profile relationships with Jennifer Aniston and Jessica Simpson and was rumored to have had a fling with Taylor Swift in the past, dedicated a song to Perry

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-profile relationships with Jennifer Aniston and Jessica Simpson and was rumored to have had a fling with Taylor Swift in the past, dedicated a song to Perry

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This article has negatively affected their celebrity stock price.

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-profile relationships with Jennifer Aniston and Jessica Simpson and was rumored to have had a fling with Taylor Swift in the past, dedicated a song to Perry

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The course of true love hasn't been smooth for Katy Perry and John Mayer, but now that they've reunited, the couple are making sweet music. The

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