This one has been out for a while, it features genius of Rodney Carrington and a bunch of ladies in the audience who are all too glad to show off their boobies to everyone.
Oh my me, what a gorgeous girl and what a great pair of boobs! Appropriately the song is titled 'The Titty Song' and is by Casey Wells (his site is here).
If you can get over the inital creepiness of a singing monkey vagina and listen to the words, they're actually pretty funny! Done to the tune of "Hey There Delilah".
These are few and far between and the girl in it is a hottie. On an unrelated note, if you're desperate for a premium forums account you can try to win it in the Scavenger Hunt!