Michael Buble appears at Foo Fighters show. See what happened

economictimes.indiatimes.com:

Foo Fighters concert in San Francisco. During the show, Foo Fighters frontman Dave Grohl initiated a playful act by questioning the audience's familiarity with Bublé's 2009 hit, «Haven't Met You Yet,» while introducing drummer Josh Freese. Freese, who has played alongside both Bublé and Foo Fighters, joined the band after their drummer Taylor Hawkins' passing. Grohl addressed the audience's claims of knowing the Bublé song, stating that many had volunteered but didn't actually know it. He asked, «Who knows the song?» In an unexpected twist, Bublé himself emerged in the crowd, holding a sign that read, «I [heart] Bublé.» Amidst cheers, Grohl acknowledged Bublé's presence, humorously remarking, «We've got a superfan. He better know the song.» Bublé confidently took the microphone and, with Freese on drums, began singing the song. Grohl playfully complimented Bublé, saying, «OK, this guy's pretty good. This guy's pretty good.» Together, they completed the song before Grohl formally introduced Bublé and recounted his journey to the stage. Grohl praised Bublé's dedication, revealing that the Canadian singer had flown all the way from Argentina that day to perform the song. Grohl's comment on taking a joke to an extreme highlighted Bublé's commitment to the light-hearted prank. In this unexpected cameo, Michael Bublé blended his talent with Foo Fighters' performance, showcasing a seamless collaboration between two well-known artists. The surprise appearance delighted the audience, adding a memorable moment to the concert experience.

Why did Michael Bublé surprise the audience at the Foo Fighters show? As part of an ongoing joke, Michael Bublé unexpectedly joined Foo Fighters on stage during their San Francisco concert,