What started as a one-off project and quickly evolved into a Grammy-nominated hip-hop super duo, Run the Jewels features the talents of Brooklyn rapper/producer El-P and Atlanta emcee Killer Mike. Atop hard-hitting beats and ominous production, the pair trade aggressive and often wryly comical rhymes, touching upon social issues, life and death, and a heavy dose of chest-thumping bragging. With a new decade came a new RTJ era. Run the Jewels 4 arrived in June 2020 amid a global pandemic (which postponed a world tour with Rage Against the Machine) and a nationwide movement in the U.S. protesting police brutality. RTJ4 featured guests Greg Nice, DJ Premier, 2 Chainz, Pharrell Williams, Mavis Staples, Josh Homme, and another de la Rocha collaboration.