Billie Joe Armstrong didn’t exactly get what he bargained for when he invited a fan on stage at a recent concert.

As has become tradition at Green Day concerts, the frontman handed over one of his acoustic guitars Monday (June 30) to a lucky fan plucked from the audience in Luxembourg, giving him the chance to perform alongside the band on “Good Riddance.” But in clips captured from the show, the fan instead starts playing the wrong chords as Armstrong looks visibly confused.

“You told me you could play this one!” the musician quips, attempting to help the fan out by reminding him of the proper key.

Then, the fan started playing the chord progression of Oasis’ biggest hit, “Wonderwall.” Realization dawning on his face, Armstrong took the guitar back from the fan, who was quickly ushered offstage by a member of the crew.

“Oh, f–k!” Armstrong says in the clip. “Nice try, nice try.”

The interaction comes amid Green Day’s The Saviors Tour, which kicked off in May 2024. It marks just the latest viral moment from the trek, with Armstrong recently making headlines for flipping off a concertgoer for seemingly spraying him with a water gun during the show.

The band has also been playing a number of festivals in 2025, appearing at Coachella, BottleRock and Download Festival in the U.K. The latter was particularly memorable as Armstrong paused the performance to call out the United States government, telling the crowd: “Donald Trump and his administration is a fascist government. And it’s up to us to fight back.”

In May, Armstrong and his bandmates were honored with a star on the Hollywood Walk of Fame. “I hope everybody comes here and takes pictures for as long as you want to and as long as you can,” bassist Mike Dirnt said during the ceremony. “We’ll never say ‘thank you’ enough.”