Animal Farm, a group out of Portland, has performed w/ countless big names in rap whenever they come to the Northwest to perform. Check this list:
Common, Method Man, Redman,GZA, RZA, Ghostface Killah, Wiz Khalifa, N.E.R.D., KRS-One, The Cool Kids, De La Soul, The Game, Del, Dead Prez, Talib Kweli, and more. That's good enough for me.
You can grab this one on iTunes too.
