The Fashion Star mentor, 32, and her fiancé, Eric Johnson, welcomed son Ace Knute Johnson on Sunday, June 30, her rep confirms to PEOPLE. The middle name honors Johnson’s Swedish grandfather, the rep explains.
The new addition joins big sister Maxwell Drew, who celebrated her first birthday May 1.
Although Simpson had initially planned to keep the sex of her second baby a secret, she memorably let it slip that she was having a son on Jimmy Kimmel Live in March, and later told PEOPLE she was looking forward to adding a boy to the family.
“I’m so excited to have a son,” she said at the time of her Tom Sawyer-themed shower in April. “I didn’t grow up with a brother and I think the unknown is really exciting. I can’t wait to have that connection with our little man.”
During a Christmas vacation, Jessica confirmed her rumored pregnancy news on Twitter when she posted a sweet picture of baby Maxwell sitting in the sand above letters that read “BIG SIS.”
Yay so overjoyed for Jessica, Eric and their families! All the best to the proud parents and their baby boy! Can’t wait to see him :)