Could somebody rip AC:WW and upload all the K.K. Slider songs? (Live performances and airchecks, please) The OST doesn't have them all.

Well, you could download a few airchecks from youtube.
if you want them from gamecube version, go to:

http://downloads.*********.com/game-soundtracks/

you know how to download youtube videos, don't you?
you can download K.K. Condor, Steppe, Comrade K.K., Calypso, Samba, some new which you'll have already, Love Song, K.K. Song, Casbah and more.
I don't know which you want but you can always search for it.

wrong link, it's http://downloads.*********.com/game-soundtracks

huh what's this?