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.

The lead singer shared the news in a heartfelt video message Wednesday. In the roughly minute-long Instagramvideo, Arnold shared that he was diagnosed with clear cell renal cell carcinoma, a ...