Chrissy Teigen and John Legend Serenading Baby Luna Will Leave You Temporarily Immobile

If you thought Chrissy Teigen and John Legend's family was adorable before, just wait until you see their latest moment together. On Thursday, the supermodel shared a video of the couple serenading their 4-month-old daughter, Luna, on Instagram. "The never-ending song," Chrissy captioned the clip of her rocking her little girl back and forth while her husband plays "O' Christmas Tree" on the piano. This is just the latest we've seen of the precious family. Not only did they bring their little girl along for their vacation in Saint-Tropez back in July, but they recently made a family appearance at the Sports Illustrated Summer of Swim event at Coney Island in New York.