Nick Jonas Strips Down to Underwear on 'Running Wild With Bear

Nick Jonas Strips Down to His Calvins on 'Running Wild With Bear

Irina Shayk Goes Topless On Vacation With Ex Bradley Cooper

Nick Jonas Strips Down to His Calvins on 'Running Wild With Bear Grylls

Nick Jonas Strips Down To His Calvins To Cross Freezing Cold Lake

Watch Nick Jonas and Bear Grylls Swim Across an Ice Cold Lake IN THEIR UNDERWEAR

Nick Jonas strips to his underwear on Running Wild With Bear

Nick Jonas Bares All in 'Running Wild with Bear Grylls'

Watch Nick Jonas and Bear Grylls Swim Across an Ice Cold Lake IN

Nick Jonas Strips Down to His Calvins on 'Running Wild With Bear

Nick Jonas in His Underwear With Bear Grylls

Running Wild with Bear Grylls: Courteney Cox opens up about her

Nick Jonas Bares All in 'Running Wild with Bear Grylls'

Nick Jonas Strips Down To His Calvins To Cross Freezing Cold Lake

Nick Jonas strips to his underwear on Running Wild With Bear