You may or may not have noticed the Lilith-like ballad playing in the background of the last episode of 30 Rock. Let's have another listen:
If the rambling, sing-songy confessional style seems familiar to you (i.e. the ear-piercing "whyyyyya whyyyya do you drink so much red wine"), that's because Tina Fey wrote AND recorded a spot-on Joni Mitchell parody. It's an ironically plaintive defense of 30 Rock's many tampon/period jokes. After all, there's no reason to get so blue about it!