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Her latest single "Heroine" is a follow up to the hit "Gashina" released last August.  Despite the fact that it's been five months since 'Gashina' was revealed, the song is still a huge hit.

When asked what the most impressive/flattering cover dance of "Gashina" was, Sunmi mentioned Psy's cover performance.

"I looked up Psy sunbaenim's parody and he wore the exact same attire that I wore; a flower patterned blouse, shorts, and boots."

Sunmi went on, "Especially towards the end when fireworks exploded from his chest was the most memorable.  I had a lot of fun promoting 'Gashina' since so many people danced to the song, which was very entertaining to watch," and expressed her gratitude.

With that being said, check out Psy's remarkable parody from his 'All Night Stand' concert below!