During her concert on New Year’s Eve in Las Vegas, Celine Dion absolutely stunned fans with a surprise cover of Adele’s “Hello.”

“If I may, I would like Adele to be part of our New Year’s Eve,” she told a crowd of delighted fans.

“So don’t panic, she’s not in the building,” she said showing off her humorous side. “Do we need to change the battery in my microphone? It kind of lost it a bit. Adele, hello? Hello?”