• KATY PERRY photo | John Mayer, Katy Perry

Credit: Courtesy Katy Perry

Published: Friday July 05, 2013 11:00 AM EDT

2013

KATY PERRY

Looks like the "fireworks" are back for the singer and her on-again beau John Mayer! Perry posted this cozy Instagram photo of the couple wearing matching stars-and-stripes gear while sharing an embrace at Philadelphia's Fourth of July Jam, which Mayer headlined. "Whose broad stripes & bright stars?!" she wrote along with the intimate photo.