Listen: Tina Fey impersonates Joni Mitchell in last week's "30 Rock"

Did you watch last week's 30 Rock? Do you remember when Liz was courted by the very attractive prostitute played by Eion Bailey? Turns out that wasn't a Joni Mitchell song playing over the fake club's sound system: it was Tina Fey herself, singing a fake Mitchell song called "Paint And Brushes." It's about tampons, I think:

I love Mitchell, but this is a pretty good impression of "All I Want." I now demand that Fey sing more on the show.