Billie Joe Armstrong is turning 50 today!

Armstrong was born on February 17, 1972.

He hails from Oakland, California.

Believe it or not, Armstrong recorded his first song when he was only 5!

He met bandmate Mike Dirnt in elementary school.

The two bonded over their love of music.

They created the band Sweet Children when they were only 14.

That band later became the ever-popular Green Day!

Fans took to social media to wish Billie Joe Armstrong a happy birthday!