Despite reports that the couple called it quits about a week ago, the music-loving duo was spotted canoodling at the FYF concert in downtown Los Angeles Saturday night.
Perry and Mayer rocked out in the VIP section at the music festival, dancing together and stealing kisses as they watched bands like Purity Ring, Sleigh Bells and M83 perform, a source tells E! News.
"Queen of California" singer Mayer, who was wearing a cowboy hat, even had his arms around Perry at one point as she stood in front of him in a floral print dress.
While the pair's appearance at the concert series was pretty low-key, a few fans spotted them in the audience, snapping photos of the duo while they enjoyed the show.
One of the "Wide Awake" singer's fans posted a photo on Instagram of Perry and Mayer smiling as they posed with a group of friends at the concert.
—Additional Reporting by Aaron Urdang