The Stray Cats
From the British film Stardust (1974). Jim MacLaine (David Essex), a randy, bed-hopping bastard, leaves his wife and infant child at the end of the film That'll Be The Day (1973) for the siren song of rock and roll. The movie is loosely based on the early life of John Lennon, and is hardly flattering. The sequel Stardust, has him forming this band.
Trivia Time! Real 1980s revival rockabilly band The Stray Cats took their name from this fictional band.