THE UN WORLD FOOD PROGRAMME REPORTS ONE BILLION PEOPLE WORLDWIDE ARE GOING HUNGRY. TO ADDRESS THIS ISSUE, YUM! BRANDS, K-F-C, PIZZA HUT, TACO BELL, LONG JOHN SILVER'S AND A&W ARE LAUNCHING THEIR THIRD ANNUAL WORLD HUNGER RELIEF EFFORT. POP SUPER STAR CHRISTINA AGUILERA IS LENDING HER VOICE TO THE CAUSE.