Mel Gibson's girlfriend, musician Oksana Grigorieva, 37, gave birth to a baby girl, Gibson's 8th child. Grigorieva was due in December. Gibson, 53, has seven kids with his estranged wife Robyn, who filed for divorce in April after 30 years of marriage. Grigorieva has son Alexander from a former relationship with actor Timothy Dalton. (Photo: WENN)