It sounds like Carrie Underwood just found her next duet partner in her son, Isaiah. The country superstar took to Instagram over the weekend weekend to share the audio of the 18-month-old taking Sam Hunt's part on her track, "Heartbeat."

Underwood starts the lines off and lets Isaiah finish them in the most adorable way. "Audio only ... my sweet boy singing his little heart out," the "Dirty Laundry" singer captions the clip. "This is the most beautiful sound in the world!"

Underwood sure is a proud mom, and with her talent running in the family, Isaiah might just become the next great country star of his generation.

The Oklahoma native recently kicked off the second leg of her Storyteller Tour with shows littered through out the west.

"I always love being on the road performing for my fans,” Underwood says about being on the road for a second round of shows, “but something about this tour feels more magnetic than ever."

In the middle of her tour, she will have to take a short break to join Brad Paisley as host of the 50th Annual CMA Awards. This year will mark the ninth year in a row the pair has held the honor of leading the event. In addition to hosting the show, Underwood has also been nominated for four awards, including Musical Event of the Year, Album of the Year, Female Vocalist of the Year and the top honor, Entertainer of the Year.

The 2016 CMA Awards will broadcast live Wednesday, Nov. 2 at 8PM ET.

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