Is there a term for referencing the main character in a first-person song?

Is there a specific word for the protagonist when the singer sings from the protagonist's point of view?

For example, in the song "Two Is Better Than One" by Boys Like Girls:

I remember what you wore on the first day
You came into my life and I thought
"Hey, you know, this could be something"


Actually, I don't see a problem with protagonist. From NOAD:

protagonist (n.) the leading character or one of the major characters in a drama, movie, novel, or other fictional text.