Yoo Jae Suk and Ji Suk Jin exposed Song Ji Hyo's clubbing habits on the latest episode of 'Running Man'.

The two elders had gotten their nametags ripped earlier in the game, and was sitting in the makeshift jail by themselves when Song Ji Hyo ran by.

"I saw you went to a club in Busan," Yoo Jae Suk called out, as he was sitting in jail. Song Ji Hyo replied defensively, "I went and danced the horse dance. So what?"

"She went crazy when 'Gangnam Style' came on," Ji Suk Jin added, mimicking her dance moves.

Could we be seeing Song Ji Hyo's Psy imitation on 'Running Man' in the near future?