Neil Patrick Harris, David Burtka's First Dance at Wedding Was to a Kelly Clarkson Song—Watch Now!

Find out which hit song from American Idol winner was introduced by Elton John

By Rebecca Macatee Sep 30, 2014 4:31 PMTags

Neil Patrick Harris and David Burtka had their pal Sir Elton John perform a few songs at their Italian wedding earlier this month, but he didn't perform the first song they danced to as a married couple...

"He introduced our first dance, which was super-fun," the Gone Girl star explained to David Letterman on Monday's Late Show. And that song, the 41-year-old newlywed revealed, was Kelly Clarkson's 2002 hit "A Moment Like This."

The American Idol, season-one winner didn't perform the song live, of course (she was back at home with newborn daughter River Rose!), but NPH and David worked a few surprises into her song still. "We had a plan—we had a firework guy," he explained. "and so when the song crescendos....when that happens, fireworks are supposed to go off!"

"But, you know, we're in a tiny town in Italy, so I'm figuring the local fireworks dude is—I don't think he's going to be exactly timed to the second...like Disneyland...we weren't expecting that to happen, but sure enough, it happened perfectly!"

And at that exact moment, the couple's friend, artist Danielle Levitt, snapped a picture of the grooms'  priceless reactions!

PHOTOS: George Clooney's bride gets fitted for the dress she wore in their Italian wedding!

Dave was impressed with the story, too, saying jokingly, "Take that, George Clooney!"

"Yeah, take that, Clooney," Neil piped in jokingly. "I don't see you showing pictures of your wedding on talk shows!"

Hey, give him a few weeks. In any case, Gone Girl hits theaters this Friday.