Is there any other Hollywood couple that has split and reconciled as much as Katy Perry and John Mayer has?

The on-again, off-again couple is officially on again, being seen together at Allison Williams and Ricky Van Veen’s wedding this past weekend.

E! Online has obtained a photo of the couple loved up on one another, with the “Roar” singer rapping her hands around his as they sat in the crowd and watched the happy couple exchange vows.

They spent July Fourth weekend together, only to break up for the fourth time in three years in mid-July. It's unclear when they reconciled again.

Other celebrities who attended the star-studded wedding, which was an outdoor ceremony at a ranch in West California, were her Girls co-stars Lena Dunham and Jemima Kirke, Andy Cohen, Bruce Springsteen and Tom Hanks and Rita Wilson.

image via Zelig Shaul/ACE/INFphoto.com