RZA of the Wu-Tang Clan is directing the film The With the Iron Fists and recruited his old friends The Black Keys help out on a song for the soundtrack.  The Baddest Man Alive sounds a lot like what one would think a collaboration between The Black Keys and RZA would song like.

Take a slow, smooth hip-hop beat and throw an Auerbach blues rift on top of it.  Key's front-man takes the first verse and proclaims that is in fact, "the baddest man alive."  RZA raps through the second verse and they combine for the chorus.

Give it a listen.

This is not the first time the rapper and blues rock duo collaborated.  RZA was featured on a couple of tracks on the Keys' 2009 collaboration album, Blakroc.  That album included notable artists like RZA, Mos Def, Ludacris, and the late Ol' Dirty Bastard.