Billy Joel shares a video of his 5-year-old singing

Della Rose Joel serenaded her big sister in an adorable new video.

Sing us a song, you're the Piano Man's daughter. Billy Joel's five-year-old, Della, is showing that she can carry a tune as well as dad.

In a video posted to Joel's social channels, Della belts out "Happy Birthday" to her older sister, Alexa Ray Joel, and carries the tune perfectly.

"Happy Birthday to our big sister @alexarayjoel. You have been singing us lullabies since we were born," the caption reads. "We are so excited to finally get to sing to you on your birthday. We love you more than words can say! Love, Della and Remy, A-Rod & Dad."

"A-Rod" is the singer's wife, Alexis Roderick, who is the mother of Della and three-year-old Remy.

Alexa Ray Joel is the singer's daughter with his former wife, model Christie Brinkley.