John Mayer has a crush on Lea Michele.

The 36-year-old rocker, who split from Katy Perry three months ago, has reportedly been texting the Glee star nonstop and wants to go on a date with her.

"John's had a crush on Lea for a while. He constantly tells her how beautiful she is," a source said.

But while Lea, 27, is very flattered by the attention, she isn't interested in dating anyone just yet following her boyfriend Cory Monteith's tragic death from a heroin overdose last July. "She just wants someone to have fun with. She isn't about to give her heart away to someone like him," the insider said.