Kesha got dissed!

While lots of young girls and plenty of hormonal teens dig Kesha for her glittery performances, her potty mouth, her dirty girl image, and her sassy, singable singles like 'Tik Tok' or 'Sleazy,' one person isn't digging on her and that's uber comedian Zach Galifianakis.

The 'Hangover 2' star, who graces the latest issue of Rolling Stone, talks candidly about his disdain for the outspoken pop star, who was once quoted as saying she wanted to make out with him. Galifianakis, known for his dry, blunt humor, doesn't even hide his disinterest from Kesha herself.

"I saw that Kesha woman the other day [in a bar]," the funny man said. He also revealed that Kesha emailed him about getting together for a drink, which he wasn't into. In fact, he was happy to tell her that he was not into it, all the while offering a critique of her music.

Galifianakis confesses that he approached the singer and unloaded, saying, "She was sitting by herself, and I walked up to her and said, 'Listen, I got your e-mail. Your music is really bad! I don't know who listens to it, but I imagine it's, like, six-year-olds -- and it's a bad message.'"

Geez, Zach. Tell us how you really feel about Kesha. You probably made her cry in her drink.

Kesha apparently had a crush on Galifianakis at some point, as New York Post once reported that she told Sirius XM in January 2010 that "I want to make out with the fat guy from 'The Hangover.' He's amazing . . . I like big, fat guys with beards that wear thick glasses."

Kesha may like burly, bearded boys, but this burly, bearded boy isn't returning the affection.

Watch the Kesha 'Blow' Video