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A group of Adele impersonators in the U.K. were shocked when the singer disguised herself and pranked them all.

The BBC’s Graham Norton worked with the superstar to pull off the prank. They used a fake chin, nose and makeup to transform her into “Jenny.”

The Adele impersonators had no idea it was her until she started singing. There’s no denying that voice!

Check out the hilarious video above.