Upon its release in 1972 by Hot Butter, literally hundreds of cover versions sprouted up around the globe. This site has a pretty good list of them chronologically, with audio clips. WFMU has 79 versions of the song as well. The song was used in a variety of media: several films [see Shriek of the Mutilated (1974)], the Digger video game in 1983, a Pampers commercial in 2001, etc.
This sound clip is from a version by Klaus Wunderlich
It's electronic sound of pop music from the future. A sample of the strange new pleasure of a world which belongs to the space age. A sample of the electronic "Au Go Go" that might be heard soon from the juke boxes at the interplanetary way stations where space ships make their rest stops.Madison Avenue was chomping at the bit to get Kingsley's sounds into their commercials. Soon, he was composing sounds for everybody from Coca-Cola to Hanes stockings to Aquanet. Here's a clip from a Luden's Cough Drop commercial:
Riding high on the subsequent success of "Popcorn", Kingsley then began to move away from the moog. He'd made space age pop accessible to the masses, and now was moving on to greener pastures in standard classical music.
Of interesting note to Retrospace readers: Kingsley composed the soundtrack for Silent Night, Bloody Night (1974) and the theme music for the game show Jokers Wild. The Jokers Wild theme was called "The Savers" and can be heard here. The music was replaced in 1974 by an Alan Thicke composition called "Joker's Jive". Yes, that's right, we just connected the dots from a 1930's Palestinian kibbutz to the dad on Growing Pains. You can thank me later.