`Topless` Amy Schumer, Serena Williams grace 2016 Pirelli Calendar

Melbourne: The American comedian Amy Schumer and sports star Serena Williams posed topless for 2016 Pirelli Calendar shot by iconic photographer Annie Leibovitz.

The 'Inside Amy Schumer' star boldly flaunted her flabs while posing in just her white underwear for the calendar and being proud of that she even tweeted "Beautiful, gross, strong, thin, fat, pretty, ugly, sexy, disgusting, flawless, woman," News.com.au reported.

In addition to this, Schumer, who wasn't shy about her untouched portrait, said in a promo video that she believed she looked more beautiful than ever.

The American portrait photographer, who also shot tennis star in black undies and flaunting her toned body, was happy to break the mould and instead of snapping supermodels in skimpy lingerie, she choose to shoot 13 women with outstanding professional, social, cultural, sporting and artistic accomplishment.

The 66-year-old photographer said that for 2016, she decided to do aomething completely different, but simple and that is why she chose to go for black-and-white portraits against a grey backdrop and wearing mostly muted colours.

Notably, the 2000 calendar shot by Leibovitz only was an exercise in photographing nudes.

This 216 calendar, which is not for sale and will be gifted to 20,000 VIPs, musicians, politicians, and royalty, also features Yoko Ono, Fran Lebowitz, Tavi Gevinson, Ava DuVernay, Natalia Vodianova, Agnes Gund, Kathleen Kennedy, Mellody Hobson, Shirin Neshat and Yao Chen.