One dad is proving there is nothing a little lullaby can't fix.

Ben Ames' 4-year-old daughter, Adelaide Ames, couldn't get to sleep because fireworks outside their home in Innsbruck, Austria, were scaring her.

"We live in a small village and every now and then a firework will go off because there's a wedding or a holiday we didn't know about," Ames, 32, who is studying abroad to finish his Ph.D. in atomic physics, told " Good Morning America." "I was trying to get her tucked in and the fireworks were going off like 'boom, boom, boom,' and she just wouldn't go down."

So the doting dad sprang into action, grabbing the pink ukulele he had just given Adelaide for her birthday, hoping to distract his little girl by breaking into a duet of the classic song, " Tonight You Belong to Me."

"I'm a fan of 'The Jerk' [movie] and I really like that duet, and I thought it'd be a cute one to show grandma and grandpa," Ames said of his decision to upload the video to YouTube. "It was a new camera, so I figured I'd put it on YouTube instead of posting it directly to Facebook, because you tend to lose some image quality that way."

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The touching video of the sweet father-daughter duet already has more than 201,000 views since it was originally uploaded on Sept. 17.

"We had never tried to harmonize ever," said Ames, a self-proclaimed music enthusiast. "At one point she stopped and interrupted me and told me to 'Take this part,' and I was really impressed. It was late at night and she was just being silly, but I was even surprised by that."

And although little Adelaide could keep up with her full-grown father, Ames says he's just taking her talent in stride.

"So many parents have so many magical moments that happen with their kids, and I just happened to get this one on camera," he said.