Bruce Willis, Sylvester Stallone, and Arnold Schwarzenegger are all hired to do movies about the big three classical music composers. The director gives them the choice on who they play.
Bruce shrugs and says, "I guess I'll be Beethoven".
Stallone thinks for a minute and says, "Eh, I'll be Mozart then."
Everyone then turns to Arnold who looks down with a sigh, "I'll be Bach".