John Legend and Chrissy Teigen really know how to sooth their baby girl.
"The never-ending song," Teigen, 30, captioned the heartwarming video, in which the 37-year-old 10-time GRAMMY winner plays the iconic Christmas standard over and over in different keys trying to elicit a smile from his 4-month-old daughter.
While she doesn't exactly smile, it's clear his little bundle of joy in entranced by her daddy's musical prowess as she can't keep from starring at his face while he beams with joy.
Little Luna has been stealing the spotlight ever since the happy couple welcomed her into their lives back in April. Check out the video below for more on the proud parents' adorable addition to the family.