The mastermind of Metallica, drummer Lars Ulrich, has posted a heartwarming photo on his Instagram account which is featuring a happy pose with his son, Layne.

Layne Ulrich is celebrating his 19th birthday today, and the first public celebration came from his father, Lars.

In the caption area of the post, Lars Ulrich has penned down an honest letter to his son Layne and also used a humorous wording while describing his feelings about Layne.

Here’s what Lars Ulrich said to his son:

“How the fuck did you get so tall…? Or am I shrinking? Wasn’t it just recently that…? What’s with the tag on the sweater?

Either way, wishing you the biggest possible Happy Birthday… 🎉 19 years old and taking on the world with your coolness and your kindness. I love you, Layne. Happy Fucking Daze Bruh!”

Metallica bassist Robert Trujillo’s wife Chloe commented:

“Happy birthday Layne!!!! ✨✨✨”

A fan named Daniel commented:

“I only see one rock star and it’s the 19-year-old 😃 damn aging sucks. I see my grandpa in the mirror every Morning 😆”

See the Instagram post below.