T-Pain and Carrie UnderwoodRapper and songwriter T-Pain is known as much for his collaborations with other artists as he is for his solo work. Joining forces with such stars as Chris Brown, Kanye West, Flo Rida and Lil Wayne, he even performed at last year's CMT Awards with Taylor Swift. But it's another country superstar he has his eyes on, even though he acknowledges any future work with her will probably never happen.

"It gets weird when I request a crazy collaboration. It gets downplayed," he laments to The Boombox. "When Taylor Swift said she wanted to work with me, it was like 'Oh, it's going to be such a great song, blah blah blah.' Then I came back and said I wanted to work with Carrie Underwood, and it was like 'Carrie Underwood would never work someone with as less class as you!'"

Earlier this year, T-Pain even made headlines by saying, "Everyone else can suck it until I get to Carrie!" However, it seems he may never get his chance, since he believes his days of working with other artists are a thing of the past. "I think I'm done," he reveals, "as far as collaborations."

Of course, we don't know if T-Pain has even reached out to Carrie. It seems his naysayers have prevented him from doing so. But we're sure the gracious country star would indeed show class if he asked.

More From TheBoot