Kristen Bell Gives Birth!

Kristen Bell and Dax Shepard are proud parents of a baby girl! They announced the arrival of their second daughter on Twitter on Friday night with Dax writing, "Delta Bell Shepard is here. She doesn't look like either Kristen or me, but we're gonna keep her anyway. #christmascameearly." Kristen added, "The estrogen has now hit critical mass! Good luck, Dax. And welcome to the world DELTA BELL SHEPARD." Delta joins older sister Lincoln, who will turn 2 in March. Congrats to the family of four!

See even more stars who welcomed babies this year!