Amy Schumer poses naked for new Pirelli calendar celebrating 'distinguished women'

Amy Schumer stripped down for the 43rd Pirelli calendar, but she's one of few women who did.

Beautiful, gross, strong, thin, fat, pretty, ugly, sexy, disgusting, flawless, woman. Thank you Annie Leibovitz!

A photo posted by @amyschumer on Nov 30, 2015 at 7:39am PST

The Pirelli calendar, published by the tire company, usually features scantily-clad models, but this year, the company announced a departure from its usual themes to honor 13 distinguished women "of outstanding professional, social, cultural, sporting, and artistic accomplishment."

Legendary photographer Annie Leibovitz shot the photos of the women - including Amy Schumer, Serena Williams, Ava DuVernay, Patti Smith, Kathleen Kennedy, and Yoko Ono - and said that the idea was to have "straightforward" photos.

"When Pirelli approached me, they said they wanted to make a departure from the past. They suggested the idea of photographing distinguished women," she said in a statement. "I wanted the pictures to show the women exactly as they are, with no pretense."

Though a majority of the women are fully-clothed, Williams and Schumer both stripped down to their underwear.

Serena Williams and Amy Schumer appear in Pirelli's "strong" women calendar. https://t.co/IgAIniZQzj pic.twitter.com/Kd4BzvgatE

- BBC Newsbeat (@BBCNewsbeat) November 30, 2015

"The Amy Schumer portrait added some fun," Leibovitz said. "It's as if she didn't get the memo saying that she could keep her clothes on."

Schumer posted the photo on Instagram with the caption: "Beautiful, gross, strong, thin, fat, pretty, ugly, sexy, disgusting, flawless, woman. Thank you Annie Leibovitz!"

The complete calendar will be unveiled tonight in London.