See some really cool Halloween costumes worn by a number of celebrities.
Katy Perry
Katy Perry dressed up as Hillary Clinton and was accompanied by her Bill Clinton.
Kathy Griffin
Kathy Griffin dressed as the Snapchat deer filter to attend Bette Midler‘s annual Halloween bash.
Kylie Jenner and Tyga
Kylie and Tyga dressed as sexy skeletons.
Bette Midler
Bette Midler dressed as the iconic Hocus Pocus character.
Nick Cannon and Mariah Carey
Nick Cannon and Mariah Carey dressed as Luigi from the Mario game and Mariah dressed as the devil.
Scott Disick
Scott Disick let out his inner Superman by dressing as Clark Kent to the American Psycho Halloween party.
Emily Ratajkowski
Gone Girl star, Emily Ratajkowski dressed as Cleopatra.
Paris Hilton
Paris Hilton took her Halloween inspiration from Alice in Wonderland.
Chrissy Teigen
Chrissy Teigen found a hot dog costume for her six-month-old daughter.
Leonardo DiCaprio
Leonardo DiCaprio donned a simple wolf mask.
Kourtney Kardashian
Kourtney Kardashian dressed as a zombie bride.