25/29
Vasquez-Max Lopes / BACKGRID
Joe Jonas and Sophia Turner
He played his fiancé's character Sansa from Game of Thrones while she walked out as a plain-old elephant.
26/29
JB Lacroix/GC Images
Ryan Seacrest and Shayna Taylor
The accessories really helped the couple pull of their looks as fashion icons Karl Lagerfeld and Anna Wintour.
27/29
Michael Kovac/Getty Images for Casamigos
Molly Sims and Scott Stuber
She went with a Día de los Muertos-inspired look while he donned a baseball player costume.
28/29
Gabe Ginsberg/Getty Images for CATCH Las Vegas
Rande Gerber, Cindy Crawford and George Clooney
As the hosts of their annual Casamigos Halloween party, they had to impress the crowd.
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Anthony Serrantonio
Jenni "JWoww" Farley and Roger Mathews
The family put some serious thought into their costumes.