Every Celeb Look From Stella McCartney's Insane Fashion Party in L.A.

Everyone in the fashion industry can agree on one thing: You never turn down a Stella McCartney invite. The British designer knows how to throw a party, so when I got invited to her autumn 2018 presentation in Los Angeles, you can bet I RSVP'd immediately. As it turns out, the bash was even more fun than I could have predicted. None other than Sir Paul McCartney jumped on stage for an impromptu performance, while Leon Bridges, Grimes, St. Vincent, and Beck rounded out the killer on-stage lineup. 

Of course, a Stella McCartney party draws an A-list crowd, so the red carpet was chock-full of celebs like Katy Perry, Kate Hudson, Amber Valletta, Hong Chau, and more. Read on to see the best looks of the night. 

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(Image credit: Steve Granitz/WireImage)

WHO: Katy Perry and Stella McCartney

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(Image credit: Steve Granitz/WireImage)

WHO: Sir Paul McCartney and Nancy Shevell 

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(Image credit: Steve Granitz/WireImage)

WHO: Amber Valletta

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(Image credit: Steve Granitz/WireImage)

WHO: Paris Jackson

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(Image credit: Steve Granitz/WireImage)

WHO: Storm Reid

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(Image credit: Steve Granitz/WireImage)

WHO: Lilly Singh

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(Image credit: Steve Granitz/WireImage)

WHO: Goldie Hawn and Kate Hudson

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(Image credit: Steve Granitz/WireImage)

WHO: Rosie Huntington-Whiteley

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(Image credit: Steve Granitz/WireImage)

WHO: Miranda Kerr

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(Image credit: Steve Granitz/WireImage)

WHO: Christina Aguilera

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(Image credit: Steve Granitz/WireImage)

WHO: Hong Chau 

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(Image credit: Steve Granitz/WireImage)

WHO: Liza Koshy

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(Image credit: Steve Granitz/WireImage)

WHO: Emma Roberts

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(Image credit: Steve Granitz/WireImage)

WHO: Angela Lindvall

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(Image credit: Steve Granitz/WireImage)

WHO: Selma Blair

Associate Director, Fashion News

Erin got her start as a Who What Wear intern over 13 years ago—back when the site only published a single story per day. (Who What Wear has since increased that number twentyfold.) She graduated magna cum laude from USC, which is how she ended up moving to Los Angeles from her hometown of San Diego. In college, she also interned at Refinery29, where she was promoted to editorial assistant and then assistant editor. After nearly three years at R29, she came back to WWW in 2016, where she currently holds the title of Associate Director of Fashion News (as well as the unofficial title of resident royal expert—in case you haven't noticed her numerous Meghan Markle and Kate Middleton stories). She spends her days trying to incorporate her idols, Anna Wintour and Roger Federer, into as many stories as possible. Outside of work, she loves tennis, classic rock, traveling, and smothering her dog with affection.