Grammy-nominated 3 Doors Down lead singer Brad Arnold passes away at 47

Brad Arnold, lead singer of Grammy-nominated American rock band '3 Doors Down', has passed away after battling stage 4 cancer at the age of 47 on Saturday, the group announced in a statement. "Brad helped redefine mainstream rock music," the band said. He'd revealed he was diagnosed with clear cell renal carcinoma that had spread to his lungs last year.