3-month-old baby laughing out loud is the cutest thing!!!

A video where a father is laughing with his three-month-old son has become viral as the little one laugh is downright contagious.

Apparently the baby’s mother is the one who is filming the precious moment.

“You are adorable,” his father says. “This is your first big laugh [do] you know that? This is your first laugh!”

Watch the cute video below.