Mario Testino's Towel Series has been an on-going Instagram photography series that showcases some of the world's most famous models and celebrities in the most natural of ways — tied in a towel. 

Kate Moss, the main inspiration behind the concept, sparked the series when she was noticed backstage at a photoshoot in a robe with a white towel wrapped around her head. Since then Testino has continued to photograph the likes of Anna Wintour, Naomi Campbell, Blake Lively and Gisele Bunchden, saying: "I think girls and guys feel this freedom at being able to express themselves because there is no predetermined way of how they should put the towel on. You can do anything you want... wear it however you want," said Testino.

Mario Testino's Towel Series produces 100 portraits

Testino has now created his one hundreth towel-inspired image, which reveals Ben Stiller posing as the famous male model, Derek Zoolander. Take a look at some of Buro 24/7 Middle East's favourite shots from the series...

Mario Testino's Towel Series produces 100 portraits

Mario Testino's Towel Series produces 100 portraits

Mario Testino's Towel Series produces 100 portraits

Mario Testino's Towel Series produces 100 portraits

Mario Testino's Towel Series produces 100 portraits

Mario Testino's Towel Series produces 100 portraits