John‘s ex, Katy Perry, recently took the cover of Cosmopolitan‘s July 2014 issue, where she dished about her former flame.
“I have a lot of respect for [John] still, and I know it goes both ways. There’s no bad blood, but I’m sure there will be inspired songs,” Katy told the mag.
Plus, according to TMZ, John loves when his exes write songs about him. A photog brings up the buzz that his ex GF Katy Perry was writing a song about him, and John was cool with the prospect. Hell, he's already been through it with Taylor Swift. "My name is gold in other people's songs!"