Nick Jonas strips to his underwear on Running Wild With Bear

The episode which aired on Monday night showed the 23-year-old pop star bravely crossing a frozen lake - but not before stripping down to his boxer-briefs.

Watch Nick Jonas Strip Down to His Underwear on 'Running Wild with

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Nick Jonas Strips Down on 'Running Wild with Bear Grylls' – Watch

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

Running Wild With Bear Grylls

Nick Jonas strips down (to wade a frozen lake) on 'Running Wild

Nick Jonas strips down (to wade a frozen lake) on 'Running Wild

Nick Jonas in His Underwear With Bear Grylls

Sexy Nick Jonas in His Undies for Running Wild w/ Bear Grylls

Fit Famous Males on X: These two sure make great television. What

Nick Jonas, Bear Grylls Strip Down, Run Wild - Queerty