Goldie Hawn's son Oliver Hudson is a father for the third time Kenneth Cole (L) and Goldie Hawn arrive at the amfAR Cinema Against AIDS 2013 gala at the Hotel du Cap in Antibes, France on May 23, 2013. The event, held each year during the annual Cannes Film Festival, raises funds for AIDS research. LOS ANGELES, July 19 (UPI) -- Hollywood actress Goldie Hawn announced via Twitter the birth of her first granddaughter. Welcome Rio! Our first baby girl to join our family! @theoliverhudson and Erinn thank you for bringing so much JOY to our lives! #happiness," Hawn tweeted Thursday. Each of Hawn's children -- actor Oliver Hudson and actress Kate Hudson -- have two sons of their own. Rio is the first daughter of Oliver and his wife Erinn Bartlett, who married in 2006.