News Update: Billie Joe Armstrong Crashes Comic-Con: Ice Cream Truck 'Basket Case' Stuns Fans

Green Day's Billie Joe Armstrong, 52, made a surprise San Diego Comic-Con appearance, sending fans into a frenzy. The punk icon spontaneously performed 'Basket Case' from an ice cream truck in Gallagher Square, outside Petco Park. This pop-up gig was a clever stunt to promote 'Nimrods,' the band's upcoming coming-of-age rock comedy. Attendees were stunned by the unexpected, high-energy performance, turning a typical Comic-Con day into an unforgettable rock spectacle.