James Brown’s “The Payback” and 2pac’s “Untouchable“ are mashed up and turned into “Unchained,” the theme song for Quentin Tarantino’s Django Unchained that hits theaters on Christmas day.

For “Unchained,” James Brown and Tupac Shakur get mashed up hard, banging like Django’s six-shooter as 2Pac’s hook from “Untouchable” stomps over the bright, brassy funk of Brown’s “The Payback.” The result – mixed by Tupac’s engineer Claudio Cueni – is a victorious anthem that feels like emerging from a gunfight unscathed. –RollingStone 

Purchase: Django Unchained Soundtrack.