Billie Joe Armstrong, the lead singer of pop punk band Green Day, reportedly performed at Facebook co-founder and CEO Mark Zuckerberg’s surprise wedding on Saturday to his longtime girlfriend, Priscilla Chan. The private wedding was held in the backyard of their home in Palo Alto, Calif. in front of about 100 guests.
Guests arrived to their home under the impression that they were celebrating Chan’s medical school graduation. Zuckerberg first announced the news by adding the event to his Facebook Timeline.

A clip posted on TMZ indicates that Green Day frontman Billie Joe Armstrong played the song “Last Night on Earth” for the couple, who shared a dance in front of clapping guests. Zuckerberg has long been a big fan of Green Day. Not only does he Like the band on Facebook, he has referenced his love for the group in presentations.