With Psy set to play Thailand tomorrow night, some people who definitely won't be in attendance decided to make a show of their own. 70 inmates in a Bangkok prison did this performance of 'Gangnam Style' for media and prison executives after winning a prison-wide dancing contest.

According to officials, the purpose of the performance is to rehabilitate the prisoners, as well as provide them with exercise, and make them very sexy. Okay, we added that last part.

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