Acoustic, bluegrass supergroup Punch Brothers—whose name is taken from the Mark Twain short story, Punch, Brothers, Punch!—is composed of a formidable lineup lead by mandolin virtuoso Chris Thile. Thile released the first of five solo albums when he was just thirteen and, by the time he was 20, he was attracting a following among pop, country, and alternative-rock audiences as a member of the Grammy Award–winning Nickel Creek. A Washington Post critic recently said Thile “may well be the most virtuosic American ever to play the mandolin.” Thile's equally youthful, prodigiously gifted band-mates are among the most in-demand performers in the worlds of bluegrass, folk, and traditional music.