Isn't Halloween just the best?
There's costumes, there's candy, there's all kinds of fun, spooky shenanigans!
Really, there are way too many great things about this holiday to list, so right now, let's focus on the costumes ... specifically the celebrity costumes!
Check out some of 2017's best looks below!
Kim Kardashian and Jonathan Cheban
Kim and her bestie, Jonathan, went to a party as Sonny and Cher, and sorry, but this is iconic.
Kourtney Kardashian and Kim Kardashian
Kim also went out with Kourtney Kardashian -- Kim was Madonna while Kourtney was Michael Jackson. Also iconic.
Yes, another Kim kostume ... this time around, she's dressed up as Aaliyah. This costume is actually kind of offensive.
Adele was kind enough to share this photo of herself on Instagram. She's ... well, she's dressed up as ... look, does it really matter? It's Adele, and she's amazing. The end.
Oh, Paris. Never change.
Nicki Minaj dressed up as Malibu Barbie. Literally no one is shocked by her choice of costume, but at the same time, literally everyone is in awe.
Over in Teen Mom land, we have Jenelle Evans dressed as a deer! Her daughter, Ensley, is also a deer, Jace is a knight, Kaiser is a pirate, and David Eason is some terrifying woodland monster.
Look at Amal, a divine disco diva!
Amal and Cindy actually attended the same party -- and it looks like they wore matching costumes, too.
Ariel Winter and her boyfriend, Levi Meaden, went out for some holiday festivities together, with Levi as some sort of athlete and Ariel, of course, as Leeloo from The Fifth Element.
We have no idea what Kelly Rowland is supposed to be, but does it really matter?
Jessica here took advantage of her current pregnant state to pull off a truly adorable Juno costume. Thank you, Jessica.
Jenna Dewan Tatum
The beautiful Jenna Dewan Tatum attended the Halloween party at her daughter's school dressed up as a "nature fairy." We're into it.
Kailyn didn't dress up herself, but her sons did! We have Isaac as Sulley from Monsters Inc., Lincoln as some sort of ninja, and Lux as a precious tiny baby!
Let's be real: Jennifer Garner is KILLING IT with this cat costume.
Adam Levine and Behati Prinsloo
Here we have Behati Prinsloo as an adorable (pregnant!) skeleton, and Adam Levine as ... a skeleton in a blonde wig and a corset? K.
This costume will go down as one of Gwyneth's few redeeming moments ... because come on, this is a hilarious reference. "WHAT'S IN THE BOX," right?
Sarah Hyland and Wells Adams
Sarah Hyland is too cute for words, and her Stranger Things look, along with Bachelorette alum Wells Adams, is just incredible.
Oh, Emrata ... a purple wig and tons of cleavage counts as a costume, right?
Kendall went for some serious vintage glamour realness, and we're not mad about it.
You really can't go wrong with a good Disney villain look. Lauren Conrad knows.
Sarah Michelle Gellar
The great Sarah Michelle Gellar is ... well, she's got some cool makeup and hair, and hey, she was Buffy. So this is fine.
Demi looks simply amazing as Selena ... the OG Selena, that is.
The always adorable and hilarious Kristen Bell explained that though she played Anna in Frozen, her daughter insisted she dress as Elsa. So good.
Farrah did a mother-daughter mermaid thing with little Sophia, and though we're a little overwhelmed by the cleavage here, it's still cute. Right? A little?