Rosie O'Donnell is a new grandma yet again! The actress and TV personality revealed on Wednesday that her daughter, Chelsea, had welcomed her third child.«Okay, big news. Congratulations to my daughter, Chelsea, who had her third daughter this morning,» O'Donnell, 59, shared in a video she posted to TikTok and Instagram. «Three girls under three, oh my gosh!»The comic went on to reveal that her new grandchild's name is Avery Lynn, and that Chelsea, her boyfriend, Jacob Bourassa, and their kids are all healthy and happy.«Chelsea and Jake and Skylar and Riley and baby Avery are all doing fine,» O'Donnell shared. «Just call me 'Nana 3'.»A post shared by Rosie O’Donnell (@rosie)«Three grandkids.