Last month we saw a short clip of Post Malone performing Nirvana’s “Lithium” at Coachella. It was slightly confusing, given that Post Malone wasn’t even on the Coachella lineup, but it all makes sense now. The clip comes from a private Coachella party thrown by Republic Records, where Post Malone and Andrew Watt performed with their band Raw Dog. They cover Nirvana’s “Lithium” and Alice in Chains’ “Man in the Box” before smashing the shit out of a guitar, and Boomshots got the footage.

Watch the performance above, and see Post Malone talk about his guitar collection, growing up on metal, and his top secret rock band. And if you’re surprised by his guitar skills, just check out his Bob Dylan cover.