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What do you get when you combine Celine Dion’s big voice and Ne-Yo’s songwriting skills? An “Incredible” duet. The pop diva and R&B crooner went in front of the lens to shoot a video for their collaboration off Celine’s latest album Loved Me Back to Life. “Good Morning America” was on set as they filmed on a rooftop in downtown L.A. last week.

It was Celine’s 13-year-old son son René-Charles Angelil who persuaded her to do the collaboration.

“He said, ‘Mom, you don’t even have to listen to the song. You have to do it,’” said Celine.

At first, Ne-Yo was hesitant about singing with the vocal powerhouse.

“The issue for me, initially, was the whole concept of a duet,” he said. “You know, it’s Celine Dion.”

But the 45-year-old veteran was able to learn from her 31-year-old collaborator.

“Ne-Yo, among other artists, gave me the chance to still be the best of myself with a little bit of tweaking the sound, on a modern approach,” she said.

Their inspirational anthem will be played at next month’s 2014 Winter Olympics in Sochi.

Go behind the scenes of “Incredible” below.