how old is billy joel from green day

You’re probably thinking of Billie Joe Armstrong , the lead singer and guitarist of Green Day—not Billy Joel, who is a different musician. 🙂 Billie Joe Armstrong was born on February 17, 1972, which makes him 53 years old as of early 2026.

Billy Joel (the “Piano Man”) is not in Green Day at all—he’s a separate artist born May 9, 1949.