In Hollywood, Halloween isn't taken lightly. Even the trillest of rappers go all out on their costumes. And this year especially, celebrities suited up and transformed into spooky monsters, animals, and their favorite characters for All Hallow's Eve, and they didn't disappoint. 

Kylie Jenner deserved an award for all of her Halloween costumes, but specifically for her spot-on make-over into Christina Aguilera from her 2002 "Dirrty" music video. Tyga also accompanied Kylie during the night, dressed as Juelz Santana.

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Swizz Beatz showed up to a party sponsored by Bacardi as a mad scientist. The Bad Boy family also didn't play any games when it came to dressing up. Puff Daddy turned up in Vegas as Thor, while Lil Kim hit up the club as a seductive bunny. And Katy Perry may have been the most drastic transformation of Halloween yet, becoming Hillary Clinton

But stepping away from the music industry, Ryan Lochte attended a bash in Beverly Hills as the Mad Hatter. And Bette Midler got festive, recreating her costume as Winifred Sanderson, the character she originally played in the 1993 film Hocus Pocus

Check out all the celebrity Halloween costumes below: 

G-Eazy as Joker:

 

Chief Keef as Lil Wayne:

Bow Wow as Spider-Man:

Alessandra Ambrosio as Jessica Rabbit:

Who has your vote for best in costume? Let us know in the comments.