AJ McLean welcomes baby girl Ava with wife Rochelle Deanna Kardis
"We are all doing well and are thrilled to welcome Ava to the world," McLean tells In Touch.
Ava was born at 4:51 a.m. in Los Angeles and weighed in at 7 pounds, 7 ounces.
McLean and his makeup artist wife married in December 2011 and announced they were expecting in April.
"Because we love you all so much, we wanted to share with you -- for the first time -- something very special. We're having a baby!" McLean said then in a YouTube video to fans.
The singer made another video on Sunday to let his fans know that baby Ava had yet to make her entrance into the world, saying she was being "stubborn just like her dad."