Good grief! Why didn't we think of this iconic Peanuts costume idea? "charli is charlie brown and i’m charli d’amelio," Gregg joked in her Insta caption.
The Riverdale costars went as characters from Napoleon Dynamite. "vote for me, and all your wildest dreams will come true," Mendes said in her IG post.
Mongeau as Paris Hilton and Cyrus as Kim Kardashian? Name a more iconic BFF duo recreating another iconic BFF duo. We'll wait ...
Team Mario or Team Luigi? We can't possibly choose!
Choose your fighter! The Riverdale trio did the PowerPuff Girls proud.
This group proves you can fight crime and be stylish at the same time as the Power Rangers.
Meow! We'll consider these cheetah costumes a tribute to Riverdale's Josie and the Pussycats.
The reality star and foodgod turned back time to 1973 as Sonny and Cher at the 45th Annual Academy Awards.
"should we shag now or shag later baby?" the model captioned her photos of the besties channeling Austin Powers and Fembot.
Hudson (as Catwoman) shared this super snap with fellow The Voice judge Shelton dressed as Batman on her Instagram.