Katy Perry and John Mayer were casually dating for a few months, but the pair just split up.

A source spilled to Us Weekly, “She's really upset about it. She is making it seem like it wasn’t serious with John, but she is hurt.”

They were spotted together going out for dinner and kissing at a pool party. It's sad that Katy is hurt by the split, but she's definitely not the first celeb John has hurt. He's infamous for not being very nice to Taylor Swift either. She got her revenge on him after their breakup with “Dear John”. Ouch!

Hopefully Katy will have better luck next time!

Thanks to Wambie girl Niall's Princess for sending this in.

Source: Just Jared