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 ex-wife Aja Volkman released an eponymous EP under the name Egyptian.
He was the seventh of nine children raised by Ronald and Christene Reynolds. He and his musician wife, Aja Volkman, welcomed a daughter named Arrow in 2012, and twin daughters, Gia and Coco, in 2017. They would briefly separate in 2018.