Halloween [1] came a day early this year for celebrities who attended the annual Casamigos Tequila party in LA on Friday. Rande Gerber, who partly owns the liquor brand along with longtime friends George Clooney [2] and Mike Meldman, hosted the bash alongside his wife, Cindy Crawford [3]. Although George was noticeably missing from the fun, the party had more than its fair share of Hollywood A-listers, who all came dressed to impress in their costumes. Channing Tatum [4] and his wife, Jenna Dewan Tatum, channeled two different versions of Dr. Seuss's Cat in the Hat [5], and Jessica Alba turned heads as Romy [6] from Romy and Michele's High School Reunion, while her husband, Cash Warren, went as Maverick from Top Gun. Salma Hayek [7] also made an appearance but did not dress up for the event, and Josh Duhamel and Fergie got decked out as Chanel [8] designer Karl Lagerfeld and Choupette. Keep reading to see all the famous faces and highlights from the extravaganza, then check out even more celebrity Halloween costumes from this year [9]!

Josh Duhamel as Karl Lagerfeld and Fergie as Choupette

Channing Tatum and Jenna Dewan Tatum as Dr. Seuss's Cat in the Hat

Gwen Stefani as a Cowgirl

Julianne Hough as Alabama From True Romance

Jessica Alba as Romy From Romy and Michele's High School Reunion and Cash Warren as Maverick From Top Gun

Lori Loughlin as Melanie Daniels From The Birds

David Spade as Pizza Rat

Salma Hayek

Paris Hilton as a Warrior

Maria Shriver as a Cat and Cindy Crawford as a Hells Angel

Molly Sims as a Tiger

Seth MacFarlane as Chewbacca

Joanna Krupa as a Showgirl

Elisabetta Canalis as Che Guevara

Kyle Richards as a Skeleton

Russell Simmons and a Friend as Run–D.M.C.

Jessica Lowndes as a Vampire

Cindy Crawford and Rande Gerber as Hells Angels

Suki Waterhouse as a Sexy Schoolgirl

Michelle Trachtenberg as a Snow Queen

Jennifer Meyer as Wednesday Addams