PHOTOS: Jesse McCartney & Wife Katie Peterson Welcome First Baby

Jesse McCartney and his wife, Katie Peterson, recently welcomed their first child into the world.

The couple, who announced they were expecting in February 2025, shared photos of their baby, Archer James McCartney, on Instagram on Tuesday (June 17), revealing that he was born a few months early on May 7. 

"Our sweet Archie couldn’t wait to meet us and arrived a bit earlier than expected. We are so in love with him. He loves when mommy reads him a book and when daddy sings him off to sleep. We look forward to bringing him home very soon to meet his big sister Bailey, who sleeps with his blanket every night. Enjoy some cute pictures of our little fighter, Archer."

The sweet, welcoming note was accompanied by a series of photos of baby Archer swaddled in a blanket, crying next to a plush bear, and wearing long pajamas with his name on them.

Fans sounded off in the comment section of the post, sharing in the couple's excitement, remarking, "For 2 months early he looks very developed!!!! Congrats on the healthy bundle!!!" and "Hi baby Archer, you are so, so loved 🥹 and you have the coolest parents on earth."

The exciting news arrives just four months after the "Beautiful Soul" hitmaker and Peterson announced they were expecting their first child together.

"Our lil Valentine 🌹🧸 arriving 8/8 xo, JK," the pair beamed beside an ultrasound photo.

See Archer James McCartney's precious newborn photos below!