Flash Cadillac & the Continental Kids, now known as Flash Cadillac, is an American retro rock 'n' roll band known for their appearance as the band "Herby and the Heartbeats" in the 1973 film American Graffiti and a 1975 episode of Happy Days as the band "Johnny Fish & the Fins". During scenes at a high school dance, the band played cover versions of "At the Hop" and "Louie, Louie" as well as their original composition, "She's So Fine". Their... [more on Wikipedia]