Comedian Amy Schumer was the headliner in the 2016 Pirelli Calendar as her non-textbook nude glamour pics had nearly everyone weighing in. But also in the Pirelli Calender were nude photos of tennis star Serena Williams, who has also taken it off before for ESPN's Body Issue.

CLICK HERE FOR A LINK TO WILLIAMS' NUDE PIC (NSFW)

Here are some backstage shots from the Pirelli Calendar - shot by famed photographer Annie Leibovitz.

In September, Metro posted a gallery of Serena's hottest Instagram pics in which she routinely flashes skin (link).