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Zac Efron With Bear Grylls | Video

Zac Efron and His Abs Defy Death With Bear Grylls!

Adventure-seeker and professional survivor Bear Grylls has a new show on NBC called Running Wild With Bear Grylls. An added bonus to the excitement Bear already brings is that he's invited celebs like Zac Efron and Channing Tatum to take on Mother Nature with him. And to answer the question on everyone's minds — yes, they will be shirtless.

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