3 Doors Down lead singer Brad Arnold has sadly passed away at the age of 47 after a battle with kidney cancer. "With his beloved wife Jennifer and his family by his side, [Brad] passed away peacefully, surrounded by loved ones, in his sleep after his courageous battle with cancer," 3 Doors Down said in a statement. "Brad's songwriting became a cultural touchstone for a generation, producing some of the most enduring hits of the 2000s, including the band's breakout hit, "Kryptonite," which he wrote in his math class when he was just 15 years old." "His music reverberated far beyond the stage, creating moments of connection, joy, faith, and shared experiences that will live on long after the stages he performed on." "Above all, he was a devoted husband to Jennifer, and his kindness, humor, and generosity touched everyone fortunate enough to know him. Those closest to him will remember not only his talent, but his warmth, humility, faith, and deep love for his family and friends." Back in May, Arnold released a video, revealing that he found out he had cancer. Rest in peace, Brad.