Reynolds was born in Las Vegas, the seventh of nine children (eight boys and one girl) of Christene M. (née Callister) and Ronald Reynolds, a lawyer and author. Both are natives of Nevada, and Reynolds is a 4th generation Nevadan. As a Boy Scout he earned the rank of Eagle Scout in 2005.
He loved music right away from when he was in middle school. He took piano lessons, drum lessons and played saxophone in middle school. All those music teachers, he says, helped him form a deeper connection to music. He ended up becoming the lead vocalist for the band imagine dragons.
