Want the greatest Halloween [1] costume? Then how about taking some inspiration from The Greatest Showman [2]? Though we can't guarantee that Zac Efron [3] or Zendaya [4] are going to be willing to accompany to your Halloween party, we can guarantee that one of these circus-inspired costumes will have you turning heads. Here are just 30 costumes that will have your friends flipping out this Halloween.
