There's only one Adele, and nothing quite captures that singular fact quite like the video above. In it, the steel-voiced singer teams up with the BBC's Graham Norton to prank a bunch of Adele impersonators, who have no idea that they're in the midst of their hero. That is until, she opens her mouth. Adele sports a fake chin and nose to fool her counterparts, but the second she opens her mouth, the jig is up. Just try not to cry.