Chris Kelly of Kris Kross performs at the So So Def 20th anniversary concert at the Fox Theater Feb. 23, 2013 in Atlanta. Kelly, one half of the '90s rap dup, has died of a possible drug overdose, Georgia authorities said. Kelly (known as "Mac Daddy"), along with Chris "Daddy Mac" Smith, the backward-pants-wearing mini-rappers, rose to fame with their song "Jump." (Prince Williams/Getty Images)