Ariana Grande has one set of pipes, but the "One Last Time singer shows just how well she uses them when she impersonated Celine Dion on The Tonight Show Starring Jimmy Fallon last night (March 20).
When Celine Dion superfan Richard Dunn recorded his 'All by Myself' parody video one lonely night at the Las Vegas McCarran Airport, he probably would've never expected that it would become a viral sensation. Even further from his mind would be that Celine Dion herself would see -- and love -- the video herself.