Halloween is the time for the stars to really get into character — spooky, horrible, bloody character!
We know that Kelly Clarkson had a special Venetian costume masquerade ball at her home over the weekend, but those pictures haven't surfaced yet. In the meantime, we'll happily enjoy her donning a fluffy white wig and singing "Chandelier" to us as Sia!
As Clarkson told TODAY before her party, "I've always wanted to throw a masquerade ball. We're telling people they can come from the past or the present, but you have to come with a mask. I bought my costume years ago in Venice when I visited, and we always throw a Halloween party. There's gonna be like 100 people at my house, and yep, all the kids will be there too, in masks!"
Of course, Clarkson wasn't the only one with Sia on the mind, or an eye-covering wig on her head. Check out Ellen DeGeneres!
DeGeneres even got Heidi Klum, as Sia's dancer, to jump out and dance on stage!
Bette Midler is a Halloween baby, and always does it up right with a charity benefit gala called Hulaween (she was born in Hawaii). This year she delighted us all by also putting on a fantastic wig and becoming Winifred, the character she played in 1993's "Hocus Pocus"!
While some might merely have donned a mask and a pantsuit to become presidential candidate Hillary Clinton, Katy Perry got some serious prosthetics done — and even roped in Orlando Bloom to play a caricature Donald Trump while the pair attended Kate Hudson's annual Halloween bash. (A friend also joined her to play Bill Clinton.)
But that wasn't the only costume Perry donned over the weekend; she turned 32 on Oct. 25 and celebrated with a party that included Bloom, Hudson and Jessica Alba, among others. The gang dressed up as students and staff at a "Grease"-inspired high school:
Speaking of Alba, she and a pal got made up as Patsy and Edina from "Absolutely Fabulous," providing a perfect excuse to guzzle wine from the bottle:
Meanwhile, Kylie Jenner channeled Christina Aguilera circa her "Dirrty" period:
And Martha Stewart was bloody good as a nurse who really needs to clean up before treating her next patient:
Actually, Martha was done up as a nurse as part of a theme party honoring artist Richard Prince, who has his own series of nurse-related works. And that wasn't all for the domestic doyenne, either; she also posted pictures in which she was transformed into Marilyn Monroe!
But Halloween weekend wasn't just for the grown-ups. Chrissy Teigen and John Legend spent all last week amusing us with various pictures of little Luna in wonderful outfits, like this little hula girl:
And Alice in Wonderland:
MORE: Chrissy Teigen shares adorable photo of baby Luna dressed as ... a hot dog!
But not to be outdone, Ice-T and Coco's little one Chanel also modeled several costumes last week, including this "Law & Order: SVU" get-up:
And Snow White!
Mariah Carey and Nick Cannon reunited for the holiday with a combo of excellent costumes with the kids:
MORE: The 37 best celebrity Halloween costumes of all time
Meanwhile, Steve Harvey revisited the classic 1988 movie "Coming to America" with the film's actresses Shari Headley and Vanessa Bell Calloway:
While Amy Schumer and boyfriend Ben Hanisch re-created two of the "Stranger Things" characters:
Hope your Halloween weekend was scary — but happy!
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