WATCH: Machine Gun Kelly on SNL!

Machine Gun Kelly made his Saturday Night Live musical guest debut on the John Krasinski-hosted episode, performing two tracks from his recent album Tickets to My Downfall.

After opening with a raucous rendition of “My Ex’s Best Friend,” the rapper/punk rocker and his band returned to play the single “Lonely” on an unusually darkened stage.

The low-key “Lonely” performance, Kelly noted on Twitter, was a lucky accident: “10 seconds before we played ‘lonely’ on SNL, they came up and said the whole lighting board and set up we had for the performance crashed. so we just had a spot light and the music, that was the best thing that could’ve happened,” he wrote.

Also ICYMI.... At the end of the night, the cast, Kelly and guest host John Krasinski gathered on the stage for the end credits. After huggingThe Office actor, the musician went to pick up SNL star and friend Pete Davidson but fell, taking both of them off the stage.