"Make Love, Even When I'm Dead" is a song featured in the Season One episode "Pinkeye".
Background
While investigating the South Park Morgue looking for clues as to what started the zombie epidemic, Chef is bitten and becomes a zombie. Chef begins to sing and dance in a choreographed way, similar to the Michael Jackson song and video "Thriller".
Lyrics
I'm gonna make love, even when I'm dead
My body might get cold, but it's always hot in my bed
Make love, don't you be afraid;
Just because my heart ain't beatin', it don't mean you won't get laid