3 Doors Down has been forced to cancel their latest tour after the band’s lead singer and drummer, Brad Arnold, was diagnosed with Stage 4 cancer. Arnold, 46, announced the shocking news on ...

3 Doors Down frontman Brad Arnold revealed on May 8 he has Stage 4 cancer. Daughtry is taking over for 3 Doors Down on tour this summer. The rock band shared the news in an Instagram post May 15.