Penny Lancaster & Rod StewartLooks like there will be another little rock star on the way for Rod Stewart. The rock legend and his third wife, Penny Lancaster, are expecting a baby. "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 couple told PEOPLE.

Stewart has five other children from previous relationships, in addition to a 4-year-old son, Alastair, with Lancaster.