Adele is one of the biggest stars in the world, so it's a little tough to go undercover and make herself unrecognizable.
But that's exactly what she did for a recent TV special, and all in the name of a good prank.
Adele recently donned a prosthetic nose and chin and posed as Jenny, a nanny and aspiring Adele impersonator. She then went to an audition of sorts with a bunch of other Adele impersonators. I'm sure you can see where this is going. The shock when the group of impersonators discovers they are actually standing in the presence of their idol is amazing.
Check out this hilarious prank from the BBC special Adele At The BBC, hosted by Graham Norton.
Adele's new album, 25, sold 2.3 million copies in its first three days. It's only the second album since 1991 to sell more than 2 million copies in one week.