The songstress took to Instagram to share pictures of her newborn with her 1.3 million followers.
In one heartwarming snap, Pink, real name Alecia Beth Moore, can be seen cradling her son.
She also revealed his name and birthday in the caption, simply writing: “Jameson Moon Hart 12.26.16.”
Another shot shows Carey holding the little bundle of joy in a chair alongside the bed.
She added the caption: “I love my baby daddy.”
Both Pink and Carey are already parents to their daughter Willow Sage Hart. It comes just over a month after Pink announced she was expecting her second child. She surprised her Instagram followers by making the announcement on November 12.