National Geographic announces reimagined season of "Brain Games" hosted by Keegan-Michael Key

WASHINGTON & LOS ANGELES -- Get ready for celebrities to get cerebral! National Geographic announced today its star-studded lineup of celebrity guests, spanning actors and musicians to entrepreneurs and athletes, for the reboot of its Emmy-nominated series, BRAIN GAMES. The eight-episode season, produced by Magical Elves, with Alfred Street Industries, adds a Hollywood twist to its classic mind-bending format by challenging the world's biggest celebrities to realize their exceptional brain power