Billie Joe Armstrong (born February 17, 1972) is the lead singer, songwriter, guitarist, and co-founder of the punk-rock band Green Day. He is also vocalist and guitarist for the band Pinhead Gunpowder, and vocalist for Green Day’s side projects Foxboro Hot Tubs and The Network.

When he was 14 years old he formed a band with his friend Mike Dirnt called Sweet Children which would eventually change its name to Green Day. Billie Joe came to light in the music scene with Green Day’s 1994 Diamond certified and Grammy award-winning Dookie. Other projects like 2004’s Grammy award-winning Punk Rock opera American Idiot and 2009’s 21st Century Breakdown have made Billie Joe and Green Day a rock icon.

He tends to be really political in his music and he has identified himself as bisexual.