Music?

Has anyone ever woke up with the strangest songs in there heads?? What I mean is, songs that you have not heard in 15 or 20 years, and songs of a genre that you don't, or have never listened to. You just wake up singing them like you had just heard it. I do this about once every couple of months..

This morning I woke up singing "Fame" hehe.. how retarded... Anyway, just curious.

That doesn't really happen to me, but sometimes in my dream I'll be singing or listening to a song that isn't real, and wake up thinking I just dreamt lyrics to a possible hit, but usually the lyrics don't make sense.