The actress/singer joined celebrities including former EastEnders actress Michelle Collins, British actor Neil Morrissey, and sports stars in Southern Africa for the 12-day challenge.
The team's limits were tested by Grylls, who set dangerous missions for them to complete while battling hunger and sleep deprivation in a variety of climates ranging between humid temperatures and bitter cold.
"The celebrities might be used to performing - whether it's on stage, TV or in a sporting arena, but the wild is the ultimate leveller and out in the mountains there was little room for egos," he says. "They had to work hard and face their fears every day, and for some of them it was just too hard both physically, mentally and emotionally. By the last episode we were down to just three, all hugely capable individuals, but at the end I chose one incredible Mission Survivor as the person that I believe shone the brightest."
Bear Grylls: Mission Survive begins airing in the U.K. on 3 March (16). The celebrity considered the weakest will be eliminated at the end of each episode.
In 2015, Model Vogue Williams beat stars including Jamelia and The Wanted's Max George to be crowned the winner of the endurance challenge.