A chart-topping, Grammy-winning a cappella group originally from Arlington, Texas, Pentatonix have parlayed their pop-oriented vocal arrangements from a reality-TV championship to sustained chart success, sold-out arena tours, and soundtrack and holiday-music ubiquity. The group first found a national spotlight by winning the third season of NBC's The Sing-Off in 2011. With a decidedly contemporary spin on the format and unique strengths at each position in their lineup, they followed the win with a string of Billboard Top Ten albums, multiple Grammy Awards, and international ...