For a beginner what? Like somone who has never heard music before?

Do you mean like a baby or something? Maybe lullabys, or Wheel's on the Bus or something like that. That alpahbet song was a good one. Happy Birthday is another big one that...it's really sad if you've never heard it, but it's a pretty vital one to learn I guess.

I can't imagine an adult or even teenager could go 13-14 years without ever hearing music before. But I guess, if that somehow were the case...I'd probably just say start with the Beatles. Maybe Rubber Soul or Revolver. It would all be so confusing though I guess not knowing what a drum is, or a guitar, or singing, but yeah, if I'd never heard any of that before, the Beatles would be a perfect way to learn what singing is and a guitar, and just songs in general. I'm going with that.