Yes, the whole song: Justin Timberlake's "Sexy Back" leaks

It dropped. It's fire. Our elevator pitch? It's Justin's "Slave 4 U" -- and not just because of the line "You see these shackles baby, I'm the slave." Also the asymmetrical beat and chopped techno synths. Pure filth. These people might know something about it. Everyone thank Benzi by buying the new Summer Madness mixtape. Benzi for president. Thanks to Certified Max for the headsup.
UPDATE [July 6]: now disseminated through the blogosphere, we'll be less coy about where to cop: Stereogum's got a Yousendit link, and Kevipod's got multiple turboupload links.