The Late Late Show host, 40, picks up the Canadian queen, 51, and they proceed to sing some of her biggest hits — from “It’s All Coming Back to Me Now” to “Because You Loved Me” and “I Drove All Night” — as they drive through Las Vegas. Super casual, right? The five-time Grammy winner somehow even manages to put a dramatic twist on the “Baby Shark” song.
What we all came to see, though, is “My Heart Will Go On” from Titanic. They save it for last but, after belting out the first little bit, James declares that the setup “doesn’t feel big enough.” “I think I’ve got an idea,” Céline replies without missing a beat, “follow me.” The next time we see them they’re on a little white Titanic replica boat in the middle of the Fountains of Bellagio.
Check out the video above for the Titanic moment and click here to see the full episode.