The World Has 2 New Celeb Babies John Krasinksi, Emily Blunt welcome daughter; Simon Cowell has son By Evann Gastaldo, Newser Staff Posted Feb 17, 2014 8:29 AM CST 1 comment Comments Emily Blunt, left, and John Krasinski arrive at the 18th Annual Screen Actors Guild Awards on Sunday Jan. 29, 2012 in Los Angeles. (AP Photo/Chris Pizzello) (Newser) – Valentine's weekend (or President's Day weekend for the less romantic of you) brought bundles of joy for two celebrity couples: John Krasinski and Emily Blunt announced the birth of their daughter yesterday on Twitter. "Wanted to let the news out directly," Krasinski wrote. "Emily and I are so incredibly happy to welcome our daughter Hazel into the world today! Happy bday!" Also yesterday, Simon Cowell got even more mushy on Twitter, Page Six reports. Cowell released photographs of him holding his son, Eric, who was born on Valentine's Day, along with sentiments such as "I never knew how much love and pride I would feel" and "Now you can see how very handsome little Eric is." Mom Lauren Silverman is also featured in one of the photos.