Photo via Killer Mike's Instagram

Real 90s kids, stand up: On their Instagrams, both El-P and Killer Mike have posted photos of Rage Against the Machine frontman Zack de la Rocha in the studio with them. El-P and Killer Mike are currently working on the follow-up to 2013's excellent Run The Jewels.

Similarly, as self-titled points out, producer Daddy Kev posted a photo to his Instagram showing El-P, Killer Mike, longtime affiliate Yak Ballz, de la Rocha, and Blink-182 drummer Travis Barker in the studio along with the caption, "if these walls could talk."

El-P also posted a snippet of a new Run the Jewels track on Instagram:

Watch Run The Jewels perform "36" Chain" at last year's Pitchfork Music Festival: