olivia wilde

Or you can leave your house! But it's basically pajamas and a bra.

Plus, can Shein change?

Lots of Gucci, as expected — but also great Saint Laurent, Tomo Kuzumi and more.

If you are famous and you live in L.A., but you weren't invited to this event...kinda awkward!

Can't imagine what reminded me of this outfit!

See the best-dressed celebrities of the night.

But don't worry, I'm fine now!

"Lady Bird" costume designer April Napier reunites with Beanie Feldstein for Olivia Wilde's very buzzy directorial debut.

She paired the tailored crimson pieces with a brighter, poppy-colored blouse.

Flowers, polka dots and animals, oh my!

Black, gray and navy were in short supply on the red carpet.

"There is a huge revolution in the works — consumers are getting very smart."

There was ping pong, magic and a Tiffany Blue-themed café.

Jennifer Lawrence, Jessica Chastain and Olivia Wilde show 'em how it's done.

The actress presented the designer with the McGovern-Dole Leadership Award in Washington D.C.

The actress and eco-activist shows her support for the launch of the new H&M Conscious Exclusive Collection.

Costume designer John Dunn amassed as much vintage as possible, but also took advantage of the 1970s moment happening in fashion right now.

And a few, like Diane Kruger and Olivia Wilde, who looked truly great elsewhere.

With Taraji P. Henson, Priyanka Chopra and Viola Davis, it stars as many women of color as the magazine featured in all of 2015.

With the help of their stylists, some of Hollywood's favorite fashion darlings are gravitating towards these two brands.

Bows, embroideries, ruffles and rainbow stripes packed a punch on Alexa Chung, Rooney Mara and Olivia Wilde.

Understandably.

Two Emmys, actually, for dressing the wonderfully quirky cast of "Portlandia."

And French fashion buyer Maria Luisa Poumaillou passed away on Monday after battling cancer.