These Stars Switched Up Their Looks Big Time For Katy Perry's Afterparty

After the Met Gala red carpet wrapped, dinner was served, selfies were snapped, and performances were enjoyed, Katy Perry invited everyone to The Standard for an afterparty. Celebs, supermodels, and designers made it out to The Boom Boom Room in outfits that were definitely more comfortable and less costume-like than their original floor-sweeping gowns.

In fact, Brie Larson and Jenna Lyons even kept it super casual in jeans. But there are always the ladies who think of a second gathering as an opportune moment to show off another good look they scooped right off the runway (Elle Fanning, we're looking at you). Scroll to see the wide variety here, before checking out the sexiest numbers we saw all night.

Katy Perry
Billy Farrell Agency

Katy Perry

Wearing Ulyana Sergeenko.

Emily Ratajkowski
Billy Farrell Agency

Emily Ratajkowski

Wearing a black slitted dress with thigh-high leather boots.

Chrissy Teigen
Billy Farrell Agency

Chrissy Teigen

Wearing a lacy see-through minidress, Maxior earrings, and Stuart Weitzman heels.

Elle Fanning
Billy Farrell Agency

Elle Fanning

Wearing Miu Miu.

Kate Bosworth
Billy Farrell Agency

Kate Bosworth

Wearing an Emilio Pucci dress with Ara Vartanian jewels, an Edie Parker clutch, and Giuseppe Zanotti platforms.

Lily Collins
Billy Farrell Agency

Lily Collins

Wearing a black bustier, high-waisted pants, and furry coat.

Zendaya
Billy Farrell Agency

Zendaya

Wearing Dolce & Gabanna.

Rihanna
Getty | Robert Kamau

Rihanna

Wearing Prada.

Kendall Jenner
Getty | Pressphotodirect/Bauer-Griffin

Kendall Jenner

Wearing a yellow PVC jacket and strappy leather miniskirt, accessorized with a Louis Vuitton bag.

Zoë Kravitz
Getty | Pressphotodirect/Bauer-Griffin

Zoë Kravitz

Wearing a monochrome look with red sandals.

Janelle Monáe
Getty | Hollywood To You/Star Max

Janelle Monáe

Wearing a Rasario dress with Giuseppe Zanotti booties.

Lily Aldridge
Getty | Mike Pont

Lily Aldridge

Wearing an Off-White tee with her Balenciaga boots.

Adriana Lima
Billy Farrell Agency

Adriana Lima

Wearing a Nicolas Jebran mini with a Giuseppe Zanotti clutch.

Kerry Washington
Billy Farrell Agency

Kerry Washington

Wearing a black crystalized dress.

Brie Larson
Billy Farrell Agency

Brie Larson

Wearing an embellished bomber and jeans.

Tracee Ellis Ross
Billy Farrell Agency

Tracee Ellis Ross

Wearing a leather dress and white blazer.

Jessica Chastain
Billy Farrell Agency

Jessica Chastain

Wearing Prada.

Olivia Culpo
Billy Farrell Agency

Olivia Culpo

Wearing a red fringe dress with an Edie Parker clutch.

Sofia Richie
Billy Farrell Agency

Sofia Richie

Wearing a Tadashi Shoji jumpsuit with Giuseppe Zanotti shoes and an Ethan K purse.

Bee Shaffer
Billy Farrell Agency

Bee Shaffer

Wearing a black cutout midi dress.

Zoey Deutch
Billy Farrell Agency

Zoey Deutch

Wearing a jacquard skirt and blouse.

Maggie Gyllenhaal
Billy Farrell Agency

Maggie Gyllenhaal

Wearing a baby pink strapless dress.

Jenna Lyons
Billy Farrell Agency

Jenna Lyons

Wearing ripped jeans and a quilted bomber.

Andreja Pejic
Billy Farrell Agency

Andreja Pejic

Wearing a white crop top underneath a black suit.

Leigh Lezark
Billy Farrell Agency

Leigh Lezark

Wearing a belted satin blazer and pumps.

Mia Moretti and Margot
Billy Farrell Agency

Mia Moretti and Margot

Wearing matching skirt suits.

Ruby Rose
Billy Farrell Agency

Ruby Rose

Wearing a Burberry cape and combat boots.

Eva Chen
Billy Farrell Agency

Eva Chen

Wearing a printed dress with flatform sandals.