John Mayer has appeared on Chappelle’s Show before, and on Tuesday night, Dave Chappelle returned the favor, showing up at Mayer’s secret acoustic show in LA to sing a few songs. Chappelle’s love for Nirvana is well-documented, and he proved it again at the concert, assisting Mayer on a cover of Nirvana’s “Come As You Are.” Watch below via LiveForLiveMusic.

#RG from @kenzdoyle – Let's talk about how I go to see #JohnMayer for $10 at the amazing Hotel Cafe and DAVE CHAPPELLE SHOWS UP and then they do A NIRVANA TRACK TOGETHER what a magical night 🌙💖 – #johnmayer

A video posted by Jan M (@nightengale68) on Jan 4, 2017 at 3:13am PST

They also did “Free Fallin'”:

Y'all they did free falling together too 😭 #JohnMayer overload today because last night was a dream 🌙

A video posted by Kenzie Doyle (@kenzdoyle) on Jan 4, 2017 at 8:37am PST

Dave Chappelle’s singing isn’t great, but it’s still probably better than John Mayer’s standup career.