Katy Perry And John Mayer

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Recording artists John Mayer and Katy Perry attend Hollywood Stands... News PhotoAmerican Cancer Society,Arts Culture and Entertainment,Attending,California,Cancer - Illness,Culver City,Event,Hollywood - California,Jim Toth,John Mayer,Katy Perry,Musician,People,Reese Witherspoon,Standing,USA,VerticalPhotographer Collection: Getty Images Entertainment 2014 Kevin MazurCULVER CITY, CA - JANUARY 28: Recording artists John Mayer (L) and Katy Perry attend Hollywood Stands Up To Cancer Event with contributors American Cancer Society and Bristol Myers Squibb hosted by Jim Toth and Reese Witherspoon and the Entertainment Industry Foundation on Tuesday, January 28, 2014 in Culver City, California. (Photo by Kevin Mazur/Getty Images for Entertainment Industry Foundation)