Celebrity babies and pregnancies of 2011

Slideshow posted in Photos | Monday, January 03, 2011

9 of 173: Charlie Day and his wife Mary Elizabeth Ellis of "It's Always Sunny in Philadelphia" fame welcomed their first child on December 15.

The couple's rep confirmed to People magazine that the TV couple welcomed son Russell Wallace Day on December 15. Russell weighed 7 lbs., 13 oz. and was 21.5 inches long.

'We are overjoyed and overwhelmed at the amount of love that ushered our baby into the world,' the couple told People magazine.

Day, 35, and Ellis, 32, got married in March 2006.

(Pictured: Charlie Day and Mary Elizabeth Ellis appear in a photo posted on Ellis' official Twitter page on June 29, 2011.) (Twitter.com/meellisday)