Vocal sensations and winners of season 3 of NBC's The Sing-Off, Pentatonix are taking instrument-free music far beyond anyone's wildest expectations. Named after the world's most widely recognized five-note music scale, this quintet has transformed one of pop music's purest and most soulful expressions into an exciting future, filled with limitless sonic possibility. From their original tracks to their intricate reimagining of pop hits and epically complex arrangements and medleys, Pentatonix have quickly developed a sound and style that is entirely unique and undeniably infectious.