Katy Perry is dating Gym Class Heroes singer Travis McCoy.

Katy Perry dating Gym Class Heroes singer Travis McCoy.

"We're going to spend the whole summer together," McCoy, 26, told PEOPLE.

"She's going to be on Warped Tour with us, she's going to be performing. It's going to be a good time."

McCoy says, "She's super hot, for one. But when I first heard the song, I was like this is going to be a smash. The next thing you know it's No. 1 on iTunes.

"I'm proud of her, she deserves it. She's been in this business for the last six, seven years, and she's finally getting a break. I'm excited for her."

McCoy recently bought Perry a diamond ring, but it's a "promise ring," he points out. She wears it on her left middle finger "and I have one too!" He gushed. His is a silver band that says 'Katy' on it.

Image WENN