News Backstreet Boy AJ McLean Welcomes Baby Girl By ETonline Staff 2:29 PM PST, November 27, 2012 Lisa Boyle Photography Backstreet Boy AJ McLean and wife, makeup artist Rochelle Deanna Karidis, had their first child together on Tuesday, In Touch reports.PICS: Celebs & Their Cute Kids According to the news source, the couple welcomed a baby girl named Ava Jaymes."We are all doing well and are thrilled to welcome Ava to the world," said the singer, 34. Ava was born weighing 7 lbs. and 7 oz., according to In Touch.VIDEO: A.J. McLean & Wife Expecting a BabyAJ and Rochelle made their pregnancy announcement just four months after their Beverly Hills wedding.AJ announced the baby's gender and name via Twitter in July.