<Tr> <Th> Instruments </Th> <Td> <Ul> <Li> Vocals </Li> <Li> trumpet </Li> </Ul> </Td> </Tr> <Ul> <Li> Vocals </Li> <Li> trumpet </Li> </Ul> <P> Frankie Avalon (born Francis Thomas Avallone; September 18, 1940) is an Italian - American actor, singer, and former teen idol . </P> <P> Avalon was born in Philadelphia, the son of Mary and Nicholas Avallone . </P>

Who sang beauty school dropout in the film grease