LATE SINGER BROWN’S STUFF HEADED FOR AUCTION BLOCK

Uhhh! James Brown's stuff is getting on up the auction block!

Tons of the late legend's crap will be sold by Christie's in August. Some of the items for sale include canceled checks, letters (one written to Princess Di on the back of a Delta Airlines flight service paper and another to rappers to tell them to stop taking advantage of him), an AOL disc envelope — yeah, even he got them — with song lyrics on the back and 590 "accessories," which include ties, socks and underwear.