Michael Bublé joins the Foo Fighters on stage

Canadian singer Michael Bublé made a surprise appearance Saturday at the Foo Fighters performance at the Outside Lands Festival in San Francisco.

In one of the videos, he can be seen holding a sign that reads, “I love Buble [J’aime Bublé]while the air of his room resounded I haven’t met you yet and Dave Grohl asking the audience if anyone knows the song.

Seeing him stroll into the distance, the formation leader motioned to join him on the platform. “Come on Super Fan, come on and show us what you can do. You better know the song,” Grohl said, as Bublé took the stage.

Then the Canadian singer got up to the microphone and started singing the first verse of his song.

“Well, this guy is very good,” Grohl joked.

During the Foo Fighters tour, Dave Grohl often mentioned Michael Bublé’s name to introduce a new drummer, the Josh Freese segment, intended for the many musicians he’s worked with over the years. Before joining the band, he provided percussion for Guns N’ Roses, Paramore, Blink-182, Avril Lavigne, and Michael Bublé.