Run The Jewels took the stage at the Echoplex in Los Angeles this week to rock Red Bull Sound Select's 30 Days In L.A. series with a little help from friends Zack De La Rocha and Travis Barker. The performance follows the recent release of the duo's highly-anticipated Run The Jewels II LP, which features contributions from Barker and De La Rocha. As one might expect, this quartet of bruisers absolutely tore it down. Check out the fan footage below to get a taste of the performance. Download the Run The Jewels II LP via runthejewels.net. Stay tuned for more from Killer Mike and El-P.