Reason number 5,671 to love Tina Fey: The comedian/actress/screenwriter/author can now add "spot-on Joni Mitchell parody songwriter" to the growing list of occupations she's mastered.

During last week's episode of '30 Rock,' a very Joni Mitchell-sounding tune played in the background of a bar specifically tailored to Liz Lemon's tastes. But it wasn't Mitchell singing at all -- it was Fey herself, doing her best folky soprano Mitchell spoof in a self-penned song called 'Paints and Brushes.'

The best line (among 1 minute and 40 seconds of pure parody genius): "Well the standards men, they don't like jokes about tampons / but it's just a natural part of the human experience, and I'm not gonna stop / not gonna stop doing / I'm not gonna stop doing jokes / about tampons."

Listen to the full track, unearthed by the gossip hounds at ONTD, after the jump.