They’re one of those couples who just may keep trying until they get it right, and yesterday (May 27) Katy Perry invited John Mayer to her Memorial Day Party.

The “No Such Thing” crooner showed up at the “I Kissed a Girl” songstress’ home in the Hollywood Hills where he reconnected with his ex-gal and mingled with fellow guests.

Back in March, John and Katy decided to call it quits again after getting back together a few months prior.

Stay linked to the GossipCenter to see if John and Katy officially get back together or just enjoy each other’s company from time to time.