Here is a collection of some of the greatest MP3 download archives available on the Net. You should find what you're looking for here, but note that some of the links may be dead. The MP3's are frequently removed by the server administrators because they require too much bandwitdh.
Be aware that
some of the MP3 files on the Internet are copyrighted and distributed
illegally. Don't download any copyrighted material, it would be illegal (I'm
linking to download sites, some of the files they link to may be copyrighted).
I cannot be held responsible for the contents on the pages/sites I'm linking
to. You may be breaking both local and international copyright laws if
you redistribute and/or download copyrighted material, like music in MP3
format