The 7-lb., 3-oz., baby arrived at 11:54 p.m. Tuesday, the singer´s rep tells E!.

"Both mother and baby are doing great," says Cole´s publicist, Tresa Sanders. "Keyshia would also like to give a special thank-you to her fans that have been with her since the beginning, sharing in her growth as a woman and an artist."

In January, Cole, 28, and Gibson, 24, announced both their engagement and pregnancy.