Justin Bieber poses for Mario Testino's Towel Series

Canadian singer Justin Bieber is the 70th star to pose for fashion photographer Mario Testino's Towel Series.

The 20 year old shows off his buff physique with a white towel wrapped low on his waist.

Justin puts his various tattoos on display, and poses in a hunky care free style.

The image comes after Gigi Hadid and boyfriend Cody Simpson posed for the Towel Series.