If you have Instagram, you’ve probably seen a lot of celebrity Halloween costumes on your feed. Some standouts are Kylie Jenner as Christina Aguilera in ‘Dirrty’ and Beyonce and Jay Z as Barbie and Ken. The Huffington Post has a list of the best celebrity costumes this year! Winners include the Kardashians (duh), Al Roker, and Ellen DeGeneres! Who do you think had the best costume? Check out the full list HERE!