Maybe it’s not quite as iconically, surreally, perversely enjoyably awful as Leonard Nimoy’s Bilbo ballad, but the Dalek Christmas song – by the Go-Go’s (but not the proper Go-Go’s), from 1964 – is still a blight upon the face of the universe. So of course I have to inflict it on you:
The only bearable part is the bit where they’re ripping off the Peter Gunn theme.

I’m trying to remember the sketch comedy show where I saw this bit with an Anglican priest. The baptismal font started rolling around the church yelling “Exterminate! Exterminate!” and the priest jumped into a confessional and took off into the space-time continuum.
http://www.youtube.com/watch?v=nh1D9ujvPQ0
Thanks, Louis B.