Popsugar Celebrity And Entertainment Celebrity Babies Pictures of New Celebrity Moms 2015 Baby Boom! All the Stars Who Became Parents This Year 19 December, 2015 by Britt Stephens 8 Shares View On One Page Photo 8 of 25 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 Adam Brody and Leighton Meester Adam Brody and Leighton Meester welcomed their daughter, Arlo Day, in August. Previous Next Start Slideshow Celebrity BabiesCelebrity PregnanciesBest Of 2015Celebrity Couples