20 of the best celebrity Halloween costumes

Kelly Ripa and Nick Lachey hilariously dressed up on an episode of “Live! With Regis and Kelly” as Kim Kardashian and Kris Humphries on the famous ex’s infamous wedding day.

Heidi Klum is considered the queen of Halloween, surprising us every year with her ellaborate costumes. This Jessica Rabbit costume is beyond incredible and the model is barely recognizable.

Emily Ratajkowski nailed her Halloween costume as “The Simpsons” character, Marge Simpson. The model’s costume which consisted of a strapless green dress, towering blue beehive, red heels and matching beads was spot on to the character.

Katy Perry and Orlando Bloom were unrecognizable when they went as Hillary and Bill Clinton for a past Halloween.

Kim Kardashian dressed as her idol, Cher for a past Halloween while her BFF Jonathan Cheban, went as Sonny. What a dynamic duo!

We had to do a double take when Kourtney Kardashian dressed up as Ariana Grande for last year’s Halloween. The reality star nailed the singer’s look.

Gigi Hadid was an adorable Sandy from “Greece” one year for Halloween. Everything from the model’s curly hair to her outfit was perfection.

Harry Styles dressed up as an old school Elton John and he totally nailed it.

Kendall Jenner made for a stunning Barbie doll for her Halloween costume last year.

Lupita Nyong’o gave us a total throwback moment with her costume as Dionne from the 1990s classic movie, “Clueless.” We couldn’t get enough of this look!

This had to be one of the most out there Halloween costumes worn by Heidi Klum - but we still have to tip our hats off at her creativity with this one.

Neil Patrick Harris and David Burtka’s costume as Mary Kate and Ashley Olsen was one of the best we’ve ever seen to date. The close attention to detail with these costumes made them beyond incredible.

Mariah Carey got in touch with her inner rocker when she went as a rockstar one Halloween. We’re kind of into this look for her.

The Kardashian sisters are known to go big for Halloween and they lived up to their reputation when Kourtney and Kim perfectly dressed up as Michael Jackson and Marilyn Monroe.

The young Hollywood Couple dressed as characters Ashitaka and San from the film, “Princess Mononoke.” These two can basically dress in anything and they’ll still be beautiful to look at.

Singer Cardi B dressed as a sexy nun for Halloween. Her outfit consisted of a black bodysuit, thigh high boots, and a veil.

Ciara and Russell Wilson looked incredible when they went as Beyoncé and Jay-Z for a past Halloween. Everything from the couple’s hair to their outfits were on point.

Kylie Jenner made up as Marilyn Monroe is one of the best takes on the lengendary singer we’ve ever seen. Kylie? Marilyn? We can’t tell!

We’re not sure if we’ve ever seen a cuter Halloween costume than Beyoncé and Blue Ivy’s costumes as Janet and Michael Jackson .

Khloe Kardashian and Tristan Thompson channeled “Game of Thrones” for last year‘s Halloween costume going as Mother of Dragons Daenerys Targaryen and Khal Drogo.