_via @theforum on_ “_Twitter_”:https://twitter.com/theforum/status/855685358947880960

John Mayer brought his The Search for Everything tour through Inglewood, CA, last night for a show at The Forum, and the guitarist welcomed a special guest during the night in Ryan Adams, who helped Mayer with a cover of one of Adams’ classics.

The guest spot came during the second full-band portion of the night, which followed the acoustic and Trio sets. Adams emerged on stage for the surprise sit in, leading the way on vocals and harmonica through his own “Come Pick Me Up,” with Mayer providing additional vocals and lead guitar.

When Adams released his newest album, Prisoner, earlier this year, Mayer expressed his admiration for the record on Twitter, calling it “melodic/harmonic gold” and saying that Adams is “swimming in his sweet spot.”

Watch a video of the collaboration below. Mayer continues his tour tonight at T-Mobile Arena in Las Vegas.