Ah C'mon! Justin Bieber wears nothing but his wet Calvins after jumping into a glacial lake in Iceland ...(Pictured)

Justin Bieber is really taking his role as the face - and body - of Calvin Klein to a new extreme level wearing nothing but his tighty whitey's to plunge into icy water in Iceland on Tuesday.

See the picture after the jump...

 

While the act of jumping into a lake formed by a melted glacier is fearless enough, the 21-year-old was even more fearless when he had completed his freezing swim - emerging in the wet and clinging underwear.

The first thing that came into my head when i saw this picture was. 'His a grower not a shower if you know what i mean'... (#Wink#wink)

Apparently he was feeling so good on Tuesday as he was willing to not only pose for a snap, but also post it on his Instagram.