Psy dipped into a leotard once again, this time, to perform a cover of Sunmi's "24 Hours"!

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Psy held his concert, '2013 Psy Concert All Night Stand' ['2013 Psy Concert Gymnastics On A Moonlit Night'], at the Seoul Olympic Gymnastics Arena on the 21st at 8 PM KST. One of the highlights of the 'moonlit night' was Psy's transformation into Sunmi wearing a tight leotard and performing her hit song. Psy gave Sunmi a run for her money with his hip shaking and sensual expressions along to the choreography which he was able to pull off perfectly.

Psy will continue to hold his 5-concert series at the Seoul Olympic Gymnastics Arena in front of a total of 60,000 fans until the 24th.

Check out his performance below!