Happy birthday to you! Everyone knows the traditional birthday song. But did you know that there are countless other songs about birthdays that are reflective and fun for celebrating your big day?

Why send someone a birthday card when you can send them a happy birthday rap instead? To mark his friend 50 Cent's birthday, that's exactly what Eminem did. SEE ALSO: You're not going to believe who ...

Bob Dylan started recording his first album; Isaac Hayes had a No. 1 single with 'Theme from Shaft'; Paul Simon and George ...