Itunes Catalog busted?

[MHettenbach]

Okay something happened to my iTunes catalog, some of the songs it will say it playing one thing in the list (ex: Lord of the Rings) but the song its playing was something from George Jones..

do I have to erase the entire catalog and reimport everything? will that even fix it?

any help appreciated. I'm at the point where I'm considering deleting the entire library and reimporting from scratch files / cd's

this is on a desktop mac running 10.7 and all the latest updates if it matters, and the glitch started right after upgrading to 10.7