Hey Tyler,, the real story is that the dancing was just a distraction for the other inmates to escape through a hole in the wall behind the sink in their cell.
No seriously, I bet you didn't know that the music was dubbed in afterwards.
Ok, ok now I'll be serious, there is a reason they didn't show the end of it.
Finnaly,,,,,,, next week the dance to the theme from the Wizzard of Oz.