Beloved a cappella group Pentatonix has been on a whirlwind ride ever since making it big by winning "The Sing-Off" in 2011. Their success has taken them across the globe, performing for large ...

Before the game began, Pentatonix, a five-part American a cappella vocal group, took to the football field to sing their country’s national anthem. It’s an anthem that demands to be sung with drama ...