Billie Joe Armstrong has been active in multiple musical projects, unveiling a limited-edition Radiant Red Les Paul Junior guitar and a Marshall signature amp, performing with Bruce Dickinson on a David Bowie cover at Comic-Con, and joining a supergroup with Tim Armstrong and Travis Barker for a Ramones 50th anniversary tribute. He also released a tribute cover of Nirvana's 'Drain You' honoring Jennifer Finch and shared insights into the personal struggles behind Green Day's iconic songwriting. Meanwhile, his side project Pinhead Gunpowder announced a fall 2026 North American tour.