When Mariah Carey goes on her next tour, she can just tell her professional backup singers to stay home. In a cute new video that the singer posted to Instagram on Wednesday, Nov. 28, she showed her twins, Moroccan and Monroe Cannon, both 7, singing the backup vocals to her “All I Want For Christmas Is You” song — and they did an amazing job!

“Three… two… one,” Moroccan said when Mariah’s hit song came on in the car, and Mariah told her driver, “Okay, turn it up a little bit please?” Her adorable kids were so excited to sing with their mom that Moroccan cracked his knuckles and started dancing before he and his sister voiced the “Oooohs” and “Ahhhhs” in the song with Mariah. Watch the adorable clip below! 

Mariah’s fans were so impressed by how quickly her kids sung in harmony with the 48-year-old star that they voiced their opinions of the cute video on Twitter. One fan wrote, “Okay but them vowels were unified, those lines were sustained, and those pitches in tune!! I thought I heard vibrato too! Yaaassss come through on the vocals lil munchkins!”

Another fan commented that the kids sounded so great that they should join Mariah on-stage for her 2019 Caution world tour. “Great job, Roc and Roe! I think you’ll get the job. Have a Merry Christmas.”

Mariah captioned the sweet video, “Roc and Roe have been practicing the background vocals to ‘All I Want For Christmas Is You,’ we’re gonna take this one step at a time — we’re very excited about it! It’s our first video doing this! It’s festive, c’mon!! 🎄🎶🎄🎶💖”

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Though Mariah reportedly had trouble selling tickets to her Las Vegas shows this past summer, she won’t need to worry about filling the seats at her upcoming concert if she brings Moroccan and Monroe with her. Besides, the Queen of Christmas herself has already influenced John Legend to make a holiday album and go on tour this year. Could there possibly be a collaboration between the two stars next year? We sure hope so!