Kristen Bell, Dax Shepard Hail Baby No. 2

Despite saying they were "completely stumped" as to what to name their second-born, Kristen Bell and Dax Shepard have managed to settle on a name for their new daughter—born Friday, reports People. The couple announced the new arrival via Twitter, with mom declaring "The estrogen has now hit critical mass! Good luck, Dax. And welcome to the world DELTA BELL SHEPARD," while dad joked "She doesn’t look like either Kristen or me, but we’re gonna keep her anyway." Delta joins big sis Lincoln, 21 months. The couple have campaigned hard to boycott magazines that publish pictures of celebrities' kids.