John Legend and Chrissy Teigen announce the birth of their first child

Power couple/social media superstars John Legend and Chrissy Teigen welcomed their first child to the world on Thursday. The couple didn't announce it until Sunday, with Legend tweeting the exciting news first.

Teigen's announcement followed shortly after on Instagram. Though there have so far been no shots of Luna Simone Stephens, the model did reveal how much her daughter weighed when she was born.