Serena Williams poses topless for Annie Leibovitz’s 2016 Pirelli calendar

One of the world's most exclusive calendars, Pirelli is known for featuring glamorous supermodels. This year however, the team behind the celebrated calendar took the 2016's issue in a whole new direction by featuring some of the world's most inspiring women including artists, athletes and bloggers. The 43rd edition, which was created by Annie Leibovitz, features the likes of Serena Williams, Amy Schumer and Chinese actress Yao Chen.