Congratulations, Uma Thurman! Today the actress and her boyfriend, financier Arpad Busson, welcomed their first child together! The baby girl joins Thurman's two children with ex-husband Ethan Hawke, 13-year-old Maya Ray and 10-year-old Levon Roan, and Busson's two sons with Elle Macpherson. Thurman did not release any information about the baby's name, the Associated Press reports, though we can't wait to find out what it is! Click through to see more celebrity moms.