This documentary chronicles the band’s successful North American tour in 2015, which saw all tickets sold out. Since their debut in 2011, Pentatonix has achieved remarkable success, selling over 2 million albums in the United States and garnering close to 1 billion views on their YouTube channel, which boasts over 8.1 million subscribers. Their most recent holiday album, “That’s Christmas To Me,” sold over 1.1 million copies in the U.S., making them one of just four artists to achieve platinum status with an album in 2014.