
Katy Perry and John Mayer's on-again/off-again relationship is, once again, off.The music superstars have split after a second stint of dating - this time around, they lasted for seven months.PLAY IT NOW: Katy Perry Talks Attending President Obama’s Inaugural VIP Party Katy, 28, and John, 35, previously dated during summer of 2012, before splitting (for the first time) in August 2012.!-- google_ad_client = "ca-pub-2060402420845788"; /* 72890text...