Katy Perry was the star of the night on Sunday after performing at the Super Bowl halftime show and was certainly the life of the party during the after party. She was even spotted with her ex, John Mayer.

Almost a year after they split, the “Who You Love” collaborators have been seen out together lately in Los Angeles, sparking rumors of a reconciliation. The fact that he was by her side during the after parties is said to mean they’re officially back on.

A source told Us Weekly Mayer was waiting for Perry backstage to be the first to congratulate her when she was done performing.

Her co-performer, Missy Elliott, even posted a photo of herself with the couple.

Perry’s latest rumored boyfriend, Diplo, even tweeted support of the “Roar” singer after her performance. “Who's w me? Team Katy Perry #sp49,” he wrote. “Ghost ride the tiger @katyperry.”

Perry and Mayer split in Feb. 2014, with sources saying her constant touring was weighing on their relationship. They were first spotted again in January.

image via Twitter from Missy Elliott

image via INFphoto.com