The pic has racked up more than 300,000 likes and fans flocked to share their excitement.
"That is adorable. I love him," one wrote.
Another added, "You are an AWESOME mum!"
A third echoed, "He is always so smiley."
Pink and her family have been taking some well deserved time off after her worldwide Beautiful Trauma tour concluded.
Earlier this week, fans went into a frenzy after husband Carey Hart shared a sweet family snap to Instagram.
He wrote, "Awesome few days w/ the family. Love getting quality time with them. Love you guys!!!! Now let’s get this Monday grind on ✊🏻"
Fans immediately flocked to the photo!
One wrote, "Amazing family," with another adding, "You guys are just the best."
Some fans even commented on little Jameson's suit jacket.
"Such a cute pic but Jameson's jacket tho...the best!" one fan exclaimed.
Pink and Carey share two children - Willow Sage and Jameson Moon.