4 Celebrities Who've Taken On Extreme Challenges

four celebrities who've taken on Extreme challenges number one Will Smith the Hollywood icon faced his fears by skydiving in Dubai embracing the thrill and danger from thousands of feet above number two Bear Grills known for his survival skills grills took Zack Efron into the wild where they survived harsh conditions together number three David Blaine the magician stayed underwater for 17 minutes setting a world record for breathholding number four Tom Cruz the action star is famous for performing his own stunts including hang off a plane and Mission Impossible these Stars show us that no challenge is too great if you're willing to push the limits