It’s subtle, but longtime Imagine Dragons fans will notice a newfound brightness on the Las Vegas band’s third album. That’s because frontman Dan Reynolds wrote most of it after coming out of a serious depression that had plagued him since childhood but became worse after the band’s 2015 world tour. Evolve marks his triumphant recovery. On arena anthems such as “Thunder” and “Start Over”, the band trades its signature angst for light rhythmic textures and fluid vocals about rebuilding. “Can we start over before it’s over?” Reynolds sings. “Come alive, come alive, come alive again.”