Penny Lancaster gave birth to Rod Stewart's eighth child on Wednesday. - Ian Gavan/Getty ImagesRod Stewart's got another reason to rock: He just became a father for the eighth time!
Stewart's wife Penny Lancaster gave birth to a son, Aiden, on Wednesday, the 66-year-old rocker's rep tells UsMagazine.com.
"Rod and Penny are thrilled ... Mother and baby are healthy and blissfully happy," the rep says, adding that little Aiden weighed in at 7 lbs., 12 oz.
Aiden joins older brother Alastair, 5. Stewart and Lancaster, 39, tied the knot in June 2007.
Announcing the pregnancy to Us in August 2010, the couple said: "We were thrilled and delighted to be able to tell Alastair that he was going to be the big brother to a little baby, expected just before Mummy's 40th Birthday."
The "Maggie May" singer has six children from previous relationships: Kimberly, 31; Sean, 30; Ruby, 23; Renee, 18, Liam, 16, plus another child who was born in 1964 and given up for adoption.
Rod and Penny posed with three of the rocker's children (from left to right) Sean, Kimberly, and Ruby at a the …