You just knew when NBC announced Zac Efron would be the first celebrity to run wild with Bear Grylls that shirts would be optional.
Welcome to the premiere of "Running Wild with Bear Grylls." NBC has released three teasers, one in which Grylls says, "We'll take our tops off..." Because you can't rappell down a cliff with them on.
To be fair, they are going to rappell a bit and then jump into a lake below. Enjoy. "Running Wild with Bear Grylls" premieres 7 p.m. July 28 on NBC.
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