WATCH: Zac Efron Goes Topless Abseiling With Bear Grylls

heat's Hottest Hunk goes survival mode!

Published 23rd Jul 2014

Guaranteed to get millions of hearts racing across the globe, heat’s Hottest Hunk Zac Efron has gone shirtless AGAIN for a new Bear Grylls TV show.

Set to air Stateside next Monday (28th July), adventure reality show Running Wild with Bear Grylls sees celebrities join forces with the British survival expert for a variety of daredevil stunts.

Two teaser clips have premiered on YouTube showing the first star guest, heartthrob Zac Efron, going full on survival mode.

The first sees 26-year-old Zac proudly show off his famous torso as he goes abseiling down a sheer rock face after Bear tells them it would be a good idea to remove their shirts.

In the second edge-of-your-seat teaser, a fearless Zac pull himself across over a gaping valley simply using only a rope. It makes us dizzy just looking at it!

Yesterday it was announced that Zac had beaten last year’s no.1 Tom Daley to the prestigious title of heat’s Hottest Hunk 2014.

heat Editor-in-chief Lucie Cave said: “Sometimes the endless procession of sexy celebrity men can seem insuperable.

“Leafing through image after image after image can be tough, but heatworld users managed it – they voted in their thousands and selected Zac Efron as the hottest man alive. For their fortitude and courage, we thank them."

You can see the full Top 10 right here