George Clooney, Cindy Crawford and Rande Gerber donned flight outfits for their Casamigos party.
![\"PHOTO:](\"http://a.abcnews.com/images/GMA/celebs-halloween-gty-er-181029_hpMain_4x3t_384.jpg\")
Gabe Ginsberg/Getty Images for CATCH Las Vegas
PHOTO: Rande Gerber, Cindy Crawford and George Clooney attend Casamigos & CATCH Halloween party at CATCH Las Vegas, Oct. 27, 2018, in Las Vegas.
John Legend couldn't have been a more amazing dad taking his little princess Luna out for the occasion.
Sarah Hyland and her boyfriend went dressed up as \"Taco Belle,\" a funny take on the fairy tale classic.
Kendall Jenner was channeling her inner \"Austin Powers\" for the holiday.
Harry Styles needed no introduction, as he was the legendary Elton John.
![\"PHOTO:](\"http://a.abcnews.com/images/GMA/harry-styles-halloween-gty-er-181029_hpEmbed_11x14_384.jpg\")
Kevin Mazur/Getty Images for Casamigos
PHOTO: Harry Styles attends the Casamigos Halloween Party, Oct. 26, 2018, in Beverly Hills, Calif.
Ryan Seacrest went as fashion icon Karl Lagerfeld.
![\"PHOTO:](\"http://a.abcnews.com/images/GMA/seacrest-halloween-gty-er-181029_hpEmbed_8x9_384.jpg\")
SMXRF/Star Max/Getty Images
PHOTO: Ryan Seacrest and Shayna Taylor are seen on Oct. 26, 2018, in Los Angeles.
Actress Gabrielle Union went as another celebrity, Gwen Stefani.
And last but certainly not least, Joe Jonas dressed up as his fiancee Sophie Turner's \"Game of Thrones\" character. Epic!
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