"I started singing 'And my girl, she ain't the one I saw coming / Sometimes I don't know which way to go /And I tried to run before, but I'm not running anymore.' In 2013, modern-day times that's sweet. Because there's so many other things to occupy your time that you can do for yourself. That to say, I tried to be alone but I can't. This is sort of our generation," he explains about the breezy duet's inspiration. "[The song can be described as] I love you based on the fact that I've tried to run and I'm not running and I give up."
The comments seem to support the claim that it was Mayer who first split with Kerry, who admitted in an interview with Vogue that though they were broken up at the time, she was "still madly in love with him."
Mayer is full of praises for Perry's contribution to the song, and says she wrote her own verse.
"I immediately thought about Katy and I was like, what a cool voice. What a cool artistic personality to have on. It was a really fun opportunity for her to write like, her answer to that," he says. "So you get these two sides to this relationship that are brutally honest but no less universal."
As for her well-received new single Roar, he claims he knew it was going to be a huge hit before it was even released.
"I remember hearing it, going like, 'Wow what an interesting experience' to hear something that you identify as massive before it's massive," he says. "I thought it was a really sweet, unforgettable sort of experience to hear someone's work while they still have a very nascent relationship with it."