Linkin Park's music has long explored themes of alienation, inner demons and personal suffering, making the suicide of the band's lead singer Chester Bennington an especially tragic and heavy loss. Bennington's voice often sounded like the battle of dark and light, as he would shift suddenly from tender, subtle vulnerability to scorching, raspy screams. "Literally the most impressive talent I've seen live," Rihanna wrote in an Instagram tribute to Bennington. "Vocal beast!" Here we revisit 12 key songs by the band that brought that voice to the world.