Remember when Psy previously asked fans what girl group song he should cover for his end-of-the-year concert this time? �Well, a popular nomination was EXID's hit track "Up & Down," which is what Psy has decided on, and he blew people away with his performance on December 24!

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For this intriguing performance, Psy dressed himself in a yellow-and-black leotard-looking outfit with fake boobs that shoot out fireworks - yes, you read that right. And now you can see for yourself above! Can we get a reaction video from EXID on this? What are your thoughts on this stage?