John Mayer Madeo sweater musician katy perry break up glasses singer

On Monday night a solo and sexy John Mayer dined at Madeo, and even with the poofy hair, hipster glasses and quirky cat t-shirt, we still think he's a hottie! And we have to wonder if he's somehow trying to send a message to his cat-loving ex, Katy Perry...

Or maybe not? After all, Katy covers the new issue of Cosmopolitan, and she singer told Chelsea Handler that she might be pulling a Taylor Swift and penning a few tunes about her famous ex!

“I know it sounds really hippie-sh*t, but I’m living in the now and not fantasizing about the future or [being] torn up about the past," she said. "I’m super Eckhart Tolle. 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.” We can't wait to hear them!