Remember when Psy had the crowd jumping on their feet on the finale for 'American Idol'? Well, he's done it again and this time it was for ABC's 'Dancing With the Stars'!

He performed "Gentleman" and really brought on the 'Party Mafia', sending every single person in the crowd jumping and screaming for him. He was the final performer of the night, and he even got to perform with the other dancers. He threw off his jacket in the end and everyone jumped up and down as they cheered him on.

How'd you like his performance?