Like Mr. Director, the clown is a parody of Jerry Lewis.
The fear of clowns is actually "coulrophobia" not "clownophobia."
"Bubba Bo Bob Brain" is one of Sherri Stoner's two favorite segments. Her other favorite is "Bumbie's Mom" (from The Warner's Lot Song/The Big Candy Store/Bumbie's Mom (1993))
The Clown's song about not being afraid of clowns is a takeoff on "You'll Never Walk Alone" from the Rodgers and Hammerstein musical 'Carousel.'
Willy Ray is a parody of Billy Ray Cyrus.