Here's a joke:

The 1970s horror film actor , Vincent Price was lounging around on a film set before the actors started filming that day. One of the actors, John, was waltzing up and down the set singing the song:"tip toe through the tulips".

John turns to Vincent and says: my song is cool! I bet you didn't know I was a singer, Did you Vincent?

Vincent Price snaps at him, saying: "Well I certainly didn't think you were an actor!"