I Was A Teenage Werewolf just barely makes it onto this page since there is only one song in the movie - "Eeny, Meeny, Miney, Mo" sung by Ken Miller and written by Jerry Blaine. Ken Miller not only sings the song, but also has a little dance number during the instrumental break. A nice little number that doesn't rock, but does swing. If you check youtube you can see the performance.
I Was A Teenage Werewolf stars Michael Landon as a troubled teen who angers too quickly and lashes out in violence. To help control these outbursts, Landon is steered to a psychiatrist/scientist for help. Unbeknownst to Landon the good doctor is actually performing an experiment on him to regress him back to earliest man, which for some reason makes Landon a werewolf.
I Was A Teenage Werewolf was a top moneymaker at the time for American International Pictures, and besides being a story that appealed to teens, I think Michael Landon, in his breakout role as the titular character, might have had something to do with its popularity. He definitely had on-screen charisma and while some of his acting comes off as James Dean lite, for the most part his acting ability was as good or better than the adult actors in the film.