The founding member of the rock band was surrounded by his loved ones, including wife Jennifer when he died. The band said in a statement released on Saturday: "Brad helped redefine mainstream rock music, blending post-grunge accessibility with emotionally direct songwriting and lyrical themes that resonated with everyday listeners. 

"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." The statement continued: "Those closest to him will remember not only his talent, but his warmth, humility, faith, and deep love for his family and friends." 

A statement posted on 3 Doors Down's social media stated Arnold died 'peacefully' in his sleep after a 'courageous battle with cancer'.

The statement continued: "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. 

"The family is deeply grateful for the outpouring of love and support during this difficult time and kindly asks that their privacy be respected. "He will be deeply missed and forever remembered." The Kryptonite hitmaker shared in May last year he'd been diagnosed with kidney cancer in an emotional video posted to Instagram.

"I'd been sick a couple of weeks ago and went to the hospital and got checked out," he said at the time. "I actually got the diagnosis that I have a clear cell renal carcinoma that has metastasized into my lung... and that’s stage four, and that's not real good."

   

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— 3 Doors Down (@3doorsdown) February 7, 2026

The devastating diagnosis lead to 3 Doors Down cancelling their upcoming gigs. Arnold concluded the video: “I'd love for you to lift me up in your prayers every chance you get," adding: "I think it’s time for me to go listen to ‘It’s Not My Time’ a little bit, right?" Fans of the band will know that's a reference to the classic track that's all about resilience. 

Arnold founded 3 Doors Down alongside pals Todd Harrell on bass and lead guitarist Matt Roberts. The statement added: "As a founding member, vocalist, and original drummer of 3 Doors Down, Brad helped redefine mainstream rock music, blending post-grunge accessibility with emotionally direct songwriting and lyrical themes that resonated with everyday listeners."