See photos of Katy Perry and John Mayer's on-again, off-again romance since they began dating in summer 2012
Standing Up Together
The couple was all smiles at a Hollywood Stands Up to Cancer event in Culver City, Calif. on Jan. 28, 2014. A few days earlier, Perry brought Mayer as her date to a Grammys after party at the Ace Hotel in downtown L.A. "John and Katy were really cute together," an insider told Us of the date night. "John had a personal camera he was taking photographs with all night."