Katy Perry and John Mayer "Very Lovey-Dovey" on Glam NYC Date Night, Says Source

Katy Perry and John Mayer just couldn't stay away from one another! On Monday night, the duo reunited (again!) 

For a romantic evening in NYC. Katy, 28, stunned in a peach satin gown, while John, 35, pulled-together in a well-fitting gray suit as the pair were snapped leaving the Waldorf Astoria Hotel. 

Earlier in the evening, John performed at the Friars Foundation Awards Gala. A source told ABC News the "Paper Doll" singer arrived solo, and Katy arrived after the event had already started and joined John's table. 

Katy and John were "affectionate" and "very lovey-dovey," according to an insider. "They were smooching and rubbing one another's backs…And Katy had her arm around John at one point." 

Katy and John were also "cuddly and cute" on their NYC date night on Saturday, a source told E! News. The pair hit up the Greenwich Hotel and the Bowery Hotel and, according to a source, "definitely gave the impression that [they] are 100 percent back together." 

E! News broke the news earlier this month that John and Katy were "back on,", although sources at the time claimed the pair were "not putting a label on it.' Hey, whatever you want to call them, it looks like John and Katy are having fun!