As you know, last night was Halloween, and while you were out having debauched nights highlighted by outrageous costumes, many of your favorite rappers were doing the exact same thing. We've already seen Iggy Azalea's hilarious "White Chicks" get up, but now here's a gallery of the best costumes we've seen rappers wearing online. 

Featured above are Beyoncé and Jay Z as Frida Kahlo and Jean Michel Basquiat, Blue Ivy as Michael Jackson, Nicki Minaj as Snow White, Rihanna as a Teenage Mutant Ninja Turtle, Jhene Aiko as Pikachu, Chris Brown and Karrueche Tran as John Travolta and Olivia Newton John in "Grease," and many more.

Let us know your favorites in the comments.