Hollywood does Halloween: Stars dress as icons, fave characters and even each other

Halloween hasn't even happened yet, but we already know how our favorite celebrities are marking the holiday this year.

That's because, over the weekend, stars played dress-up a little early for a number of big bashes — and they didn't hold back.

Trust us, some of these costumes will have you doing a double take!

One of the biggest celebrations in Tinseltown was the Casamigos Halloween Party, and the men who founded the tequila label, George Clooney and Rande Gerber, were there for the event.

Stars celebrate Halloween

Rande Gerber, Cindy Crawford and George Clooney attend the Casamigos Halloween Party.

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The A-lister and the businessman showed off their matching pilot costumes, while Gerber's wife, supermodel Cindy Crawford, brought some retro realness as an old-school flight attendant.

Also in attendance were Kendall Jenner, who channeled her inner "Austin Powers" fembot, and heartthrob rom-com star Noah Centineo as everyone's favorite Disney baddie, Gaston.

Play with your children. Let them choose the activity, and don't worry about rules. Just go with the flow and have fun. That's the name of the game.

Stars celebrate Halloween

Kendall Jenner attends Casamigos Halloween Party at CATCH Las Vegas at ARIA Resort.

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Stars celebrate Halloween

Ross Butler and Noah Centineo attend the Casamigos Halloween Party on October 26, 2018.

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But the best costume of the bash had to be the one worn by Harry Styles, in which the singer was a dead ringer for another superstar vocalist — Elton John.

Stars celebrate Halloween

Harry Styles attends the Casamigos Halloween Party.

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Styles was far from the only star to style himself as another famous face. In fact, it was quite the trend at other shows and celebrations.

From Rita Ora's amazing transformation into rap star Post Malone:

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To Ariel Winter and Levi Meaden's take on former couple Pamela Anderson and Kid Rock:

Plan not-so-random acts of kindness. Kids need to know that helping others is an everyday practice, not a visit-a-soup-kitchen-at-the-holidays grand gesture. Challenge yours to complete small tasks every week, like throwing away another kid's trash at lunch or raking a neighbor's lawn. Training your children to focus on others helps curb entitlement. "Gratitude becomes woven into who they are," says Jeffrey J. Froh, a coauthor of Making Grateful Kids.

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To Joe Jonas' holiday makeover into ... his very own fiancee?

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Yes, the singer-actor actually dressed up as partner Sophie Turner's character from "Game of Thrones." (Be sure to click or swipe through to see the other shot he shared for the full fun effect.)

While there weren't any ghosts or ghouls among these famous faces, there were a couple of classic costumes in the mix.

For instance, Jerry Seinfeld dressed up as the Big Bad Wolf (dressed up as grandma) alongside wife Jessica's Little Red Riding Hood.

Stars celebrate Halloween

Jessica Seinfeld and Jerry Seinfeld attend the 2018 GOOD+ Foundation's 3rd Annual Halloween Bash on October 28, 2018 in Culver City, California.

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And two stars not only went the classics, but they brought their kids along, too.

John Legend played the perfect Prince Charming for his little princess, 2-year-old daughter Luna.

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While Pink went out as a seafaring mama with her little pirate pal, 22-month-old son Jameson.

Heather Weston

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