I don't know if this will help, but it seems it uses licenced music for its in game music since its EA.
This is a list of the music the game has in it:
# CCR - "Fortunate Son"
# The Troggs - "Wild Thing"
# The Trashmen - "Surfin' Bird"
# Edwin Starr - "War"
# Deep Purple - "Hush"
# Jefferson Airplane - "Somebody to Love"
# Canned Heat - "On the Road Again"
# Bobby Fuller Four - "I Fought the Law"
# Joe Cocker - "The Letter"
# Martha and the Vandellas - "Nowhere to Run"
I'm afraid I don't know which one would be used for the main menu though.
I don't think it is illigal, if you actually own the game (Least, I don't think so). But, drumthrasher did say its his mates game, and hasn't got it installed on his machine.
Hopefully the above track listings though should help in your search