Green Day’s iconic frontman, Billie Joe Armstrong posted a bunch of special photos of his beloved son, Jakob Danger Armstrong and celebrated his 21st birthday with a great message on his official Instagram account.

As Billie shared his feelings to his lovely son, lots of user sent their birthday messages and one of the users who liked the photo was Kurt Cobain’s widow, Courtney Love.

Here is what Billie wrote:

“Huge happy 21 bday to my son the legend Jakob Danger armstrong!!

I love you Boo.”

A user named st_jimmy_02 commented and said:

“It’s so cool that you gave him the middle name danger.”

You can see these photos below.