Frontman for the indie rock band Imagine Dragons alongside lead guitarist Wayne Sermon, drummer Daniel Platzman and bassist Ben McKee. Imagine Dragons hit it big with their 2012 album Night Visions, which features the single "Radioactive."
He formed Imagine Dragons while studying at Brigham Young University. He also worked at a Mormon missionary for two years.
He and his wife Aja Volkman formed the indie rock duo Egyptian and released a self-titled EP in 2011.
He was the seventh of nine children raised by Ronald and Christene Reynolds. He married Aja Volkman in 2011. They welcomed a daughter named Arrow in 2012, and twin daughters, Gia and Coco, in 2017. They briefly separated in 2018.