Dinosaur Jr. is an American alternative rock band formed in Amherst, Massachusetts in 1984. Originally called Dinosaur prior to legal issues that forced the group to change their name, the band disbanded in 1997 until reuniting in 2005. Guitarist J Mascis, bassist Lou Barlow and drummer Murph were the band's founding and current members; however, Mascis has been the group's sole continual member.
Daniel Robert "Danny" Elfman (born May 29, 1953) is an American composer, best known as the lead singer and songwriter for the rock band Oingo Boingo, from 1976 to 1995 and later for scoring music for television and film and creating The Simpsons main title theme as well as the 1989 Batman movie theme. He has scored the majority of the films for his long-time friend Tim Burton. Born in Los Angeles, he entered the film industry in 1976, initially as an actor. He made his film scoring debut in 1980 for the film Forbidden Zone directed by his older brother Richard Elfman.