During her show at the Colosseum in Las Vegas on New Year's Eve, Dion stunned the audience when she surprise-covered Adele's "Hello."
“So tonight, if I may, I would like Adele to be part of our New Year’s Eve,” Celine said. “So don’t panic, she’s not in the building… Do we need to change the battery in my microphone? It kind of lost it a bit. Adele, hello? Hello?”