The 2013 Pirelli calendar features some of the world's most beautiful models who are photographed against the lush backdrop of Rio de Janeiro, Brazil. Shot by photographer Steve McCurry, who is famous for the striking portraiture he did for National Geographic in 1985 of the Afghan Girl. This year's calendar models are chosen based on their contributions to various charitable causes and includes Adriana Lima (who is seen with her baby bump), Karlie Kloss, Isabeli Fontana, Petra Nemcova, Elisa Sednaoui and Liya Kebede.

Images: pirellical.com