Chrissy Teigen's four year old daughter Luna got a karaoke machine, so her mother shared footage of her singing Selena Gomez's "Hands to Myself" and Ariana Grande's "NASA" on her Instagram Story. The clips were cuteand got Grande's attention. (Having a famous mom with a huge following and tagging Grande can really make things happen.)

Grande's reaction to Luna singing her song ended up being what most fans dream of: Grande watched and featured Luna's cover in her Instagram Story. Grande captioned the clip with an emotional emoji and white heart.

Grande's shoutout comes about a week after Luna celebrated her fourth birthday in quarantine with her mother, dad John Legend, and little brother Miles. Legend revealed on his Instagram that Teigen went out of her way to make Luna's day special by decorating the house and making sure there was plenty of cake.

"Luna's living her best birthday life," he wrote. "Mommy decorated. No preschool friends were able to come, but they sent video messages and she was thrilled. Good memories for her during this strange time."

Teigen and Legend both shared Instagram birthday tributes to their daughter ahead of the day's celebrations. "happy 4th birthday to the queen of our household," Teigen captioned hers. "I could have never prayed for a better little being."

"Happy 4th birthday to our beautiful Luna!" Legend wrote in his post, which featured a gallery of photos taken throughout her life. "I'm so happy I get to be your father, teacher, friend. "

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Ariana Grande Had the Best Reaction to Chrissy Teigen's Daughter Luna Singing 'NASA' - ELLE.com