This might be the funniest song I've heard, ever. Explicit lyrics, but we're all adults; or at least pretend to be.
Sax Man:
Also by the same band (and with a music video this time):
I'm On A Boat:
The band is The Lonely Island, and they have a new album. They've performed on Saturday Night Live, and most of their songs are quite funny.
My friend turned me on to them, and I'm genuinely impressed. Oftentimes when bands try to write funny songs, it's forced or the songwriting itself suffers; but I feel that this band is genuinely funny while also having very listenable, and enjoyable songs.