Katy Perry's Celebrity Friends

Check out KP's impressive roster of famous pals.

(Source: Larry Busacca/Getty Images North America)
Katy's Besties
Katy Perry is one popular pop star. She's BFFs with Rihanna, more than friends with John Mayer, and mingles with everyone from Elton John to One Direction. Check out a roster of her famous pals, ahead.
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