James Brown "Unchained (The Payback/Untouchable)" (ft. 2Pac)

James Brown 'Unchained (The Payback/Untouchable)' (ft. 2Pac)
As previously reported, Quentin Tarantino's upcoming Django Unchained flick is set to feature a star-studded cast of musicians. Now, we get to hear one of the most anticipated works with the James Brown and 2Pac mash-up "Unchained."

Combining the late artists' respective songs "The Payback" and "Untouchable," the funked-up hip-hop jam sounds like it would be perfectly suited to the adrenaline rush that comes with a classic Tarantino fight scene.

Check out "Unchained" below courtesy of Rolling Stone.