Billie Joe Armstrong of the band "Green Day" appears on stage during MTV's "Total Request Live" show at the MTV Times Square Studios, Thursday, Nov. 10, 2005, in New York. (AP Photo/Jeff Christensen)

Green Day Frontman Billie Joe Armstrong shared a recent Instagram video on his official page, and congrats being an uncle for the first time.

Here is what he wrote:

“Me and Mickey O!”

Fans also commented about the video and sent their gratulations to Billie.

rage_and_love80 wrote:

“I love it when babies laugh ­čĄú This is probably one of the cutest videos I’ve seen in a while @billiejoearmstrong”

A fan named Oscar commented:

“And this is why greenday is the most kickass as well as wholesome and adorable band ever!”

A fan named Curvy said that:

“Omg my heart just exploded!”

Here is Billie Joe Amstrong’s Instagram post:

View this post on Instagram

Me and Mickey O!

A post shared by Billie Joe Armstrong (@billiejoearmstrong) on