O mein Papa is a German song about a beloved clown father, written by Swiss composer Paul Burkhard in 1939 for a musical called Der Schwarze Hecht (reproduced in 1950 as Feuerwerk (Fireworks)).

Clueless Morgan and Polly Lobster sang this song until they get hit by 5000-pound weights in the Mr. Callahan UK spot in episode 110 of Muppets Tonight.