Costuming Up with the Kardashians: See the Top 40! (PHOTOS)

Kim's Sexy Costume
Kim Kardashian stuns on Halloween as Poison Ivy.
Sexy Costumes: Guess Who?
Which stars got sexy for Halloween?
For three years running, the Kardashian sisters have asked their fans to submit the best celebrity costumes in their annual Costuming up with the Kardashians contest — and the entrants really went all out this year! 

Kim, Kourtney and Khloe hand selected their top 40 choices and the grand prize winner.

Click the pics to see their favorite entries, and keep scrolling through the gallery to see the final and winning entry at the end!  

For a little extra fun, we pulled together some of our favorite celebrities in their costumes this year. Who went as who? Find out by clicking through!

Remember, it’s never too late to start thinking about your costume for next year!