Toot, Whistle, Plunk, and Boom are the titular characters in Toot, Whistle, Plunk and Boom.
Toot, Whistle, Plunk and Boom
They appeared in Toot, Whistle, Plunk and Boom to show us the beginning of music, for the caveman years was the beginning of Earth.
Hercules: The Animated Series
Toot, Whistle, Plunk, and Boom made a cameo in "Hercules and the Prometheus Affair" in the song telling the story of Prometheus as cavemen dancing around a campfire before being struck by Zeus' lightning.
House of MouseThey appeared in House of Mouse as a fill-in for the club band.