First performed in the movie Svezia, inferno e paradiso [Sweden: Heaven and Hell] (1968).
Popular version performed by The Muppets (US #55/MOR #12/CAN #22 1969).
“Most people know Mahna Mahna as a Muppets sketch, but the song — titled Mah Nà Mah Nà — is actually by Italian composer Piero Umiliani. The Tuscan musician composed scores for exploitation films in the ’60s and ’70s, including spaghetti westerns and softcore sex films, but Mah Nà Mah Nà would be his most famous work.
“The song originally appeared in a racy Italian film called Svezia, inferno e paradiso (Sweden: Heaven and Hell), in a scene where a bunch of Swedish models crowd into a sauna wearing little more than bath towels.