Rod Stewart and Penny Lancaster

It's a boy for singer Rod Stewart and wife Penny Lancaster Stewart.

Aiden was born Wednesday, weighing in at 7 pounds, 12 ounces. "Mother and baby are healthy and blissfully happy," a rep for the couple told People.

Rod Stewart, Penny Lancaster expecting second child

Stewart, 66, and Lancaster, 39, have a 5-year-old son, Alastair. Stewart also has five children from previous relationships: model Kimberly Stewart, 31, Celebrity Rehab star Sean Stewart, 30, Ruby, 23, Renee, 18, and Liam, 16.

Check out photos of Penny Lancaster

Kimberly and Sean Stewart are his children with Alana Hamilton; Ruby, with model Kelly Emberg; and Renee and Liam, with Rachel Hunter.

Stewart and Lancaster wed in 2007.