AceShowbiz -

Katy Perry and John Mayer are back on again after she said in a recent interview with Vogue that their relationship was "over." The on/off couple reunited in New York City on Monday night, June 24 when attending an event held by the Friars Foundation to honor Don Rickles.

Mayer, who donned a grey suit, posed for pictures with Bob Newhart, Joan Rivers, Kathy Griffin, Bob Saget and Lewis Black on the red carpet. Perry, looking lovely in a peach Sally LaPointe satin gown, "arrived after the event had already started, but before dinner was served," a source said.

Once they met inside, the pair were seated next to each other. The source said they were "affectionate" and "very lovey-dovey," adding, "They were smooching and rubbing one another's backs. And Katy had her arm around John at one point."

Another fellow attendee told Us Weekly, "During dinner, Katy and John looked at each other like they were the only people in the room." The insider claimed, "Katy didn't stop smiling and John kept whispering in her ear. A few times, their faces were so close it looked like they were about to kiss, but they didn't. They were very intimate and seemed very much in love."

The "Your Body Is a Wonderland" rocker, who performed "One for My Baby (and One More for the Road)" at the event, reportedly kissed the "Teenage Dream" hitmaker on the cheek. They later left the Waldorf Astoria, where the Friars Foundation Awards Gala was held, together and seemingly were not bothered that shutterbugs took their pictures as they walked hand-in-hand.

Prior to the Monday night date, Perry and Mayer were said being "cuddly and cute" at the Greenwich Hotel and the Bowery Hotel on Saturday night. A source said they "definitely gave the impression that [they] are 100 percent back together."