Well it was only a matter of time before choreographed flash mobs went from annoying performances to widespread theft, as Chicago's Mildblend Supply Co. found out Saturday when 20 kids stole about three thousand dollars worth of their jeans.

Owner Luke Cho told theSun-Times, "I see a group of kids. They're coming in the store in a marching way, like a team. After the 15th or 16th teenager was inside I knew something bad was happening...My staff got cuts and bruises and banged around until [the thieves] unlocked the door and got out So, it wasn't a complete success from their perspective, but not a complete fail,".  Check out the security video of the creepy gang enter and exit the store below.  [The Cut]