"Popcorn" is a famous early synthpop instrumental. Composer Gershon Kingsley (of Perrey and Kingsley) first recorded it for his 1969 album Music to Moog By. In 1971 the song was re-recorded by Kingsley's band First Moog Quartet. Stan Free, member of the First Moog Quartet, rerecorded the instrumental with his band Hot Butter in 1972, which became the first primarily electronic-based piece of music to reach the American popular music charts. The record was one of a rash of Moog synthesizer-based releases that characterized "synth-pop" of the 1960s and 1970s.