Celine Dion Surprises Couple by Singing First Song at Their Wedding -- Watch!

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Could you ask for a better wedding singer?

You couldn't ask for a better wedding singer!

When Jason and Kate, an Air Force couple, decided to get married in a Las Vegas chapel, they probably didn't expect Jimmy Kimmel would be doing his late night show from the Zappos Theater at Planet Hollywood. And they certainly didn't expect he'd pull out all the stops to make their big day more special.

"I was wondering if I might step in and you might let me preside over your ceremony," the Jimmy Kimmel Live! host told the confused couple. Nonetheless, they obliged. And when he asked whether there were any objections, David Spade popped into the chapel to offer the couple a couple tequila shots before they made it official.

After the couple finally said their "I Do's," Kimmel pulled the biggest trick out of his hat, bringing out Celine Dion to sing the song for their first dance!

Watch everything unfold below (Celine Dion comes in at about 4 minutes).

Now that's how to do a wedding right!

Meanwhile, ET's Nancy O'Dell was with Dion at the Ace Hotel in Los Angeles on Wednesday, where she opened up about getting the courage to perform again, after losing her own husband, René Angélil, in 2016.

"If you look at the definition of courage, it's a big, big word. It's an important word and everything that I went through the last three years for example, even before any past, I was not even sure if I was going to go and sing again," the 51-year-old songstress confessed. "But [Angélil] would want me to sing again, so I went back and forth and it was hard."

"The thing is we all go through tough times," she added. "Like I said today, we get sick, we lose people, we find out things, we have to find the inner strength and we all do, and it's the courage. Life imposes things on you. You have no choice. You have to deal with them."

Watch the video below for more.

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