"John Cafferty and the Beaver Brown Band" were an American rock band of the 1970s and 1980s, from Narragansett, Rhode Island. Originally known as simply "Beaver Brown", the group initially established a popular following throughout Rhode Island, Connecticut, and Massachusetts.
They achieved their greatest fame when they performed the music of a fictional band in the hit 1983 movie ''Eddie and the Cruisers''. The film produced a Top 10 soundtrack album and a #7 hit single ("On the Dark Side"). The group's sound at this point was virtually cloned from the distinctive sound of Bruce Springsteen and the E Street Band. Indeed the arrangement of vocals, guitar, piano, and Michael Antunes' saxophone was so familiar that many casual listeners thought "On the Dark Side" was indeed the new Springsteen record.
The group's 1985 follow-up album ''Tough All Over'' made the top 50, getting some attention for "C.I.T.Y" and the title track. Subsequent releases were mostly sequels to the Eddie and the Cruisers concept, and Cafferty and the band faded from popular consciousness.