In the "Muppets Tonight" TV show, guest star Sandra Bullock is a therapist talking to patient Kermit the Frog. He complains that every time he says a particular word, something weird happens. Sandra Bullock asks him which word, and he replies:
Phenomenon
(Do-doo-dododo)
Phenomenon!
(do dodo doo)
Phenomenon?
(do doo dododo dododod dododo doo do do-do do-do-do)
After each "Phenomenon" a bunch of small muppets would spring out from behind the chair and sing the answer.
The first time I watched this, I almost wet myself. This sketch should not be viewed whilst consuming drinks of any kind...