Pentatonix Biography (Wikipedia)
Pentatonix (often abbreviated as PTX) is an American a cappella group from Arlington, Texas consisting of five vocalists: Avi Kaplan, Scott Hoying, Kirstin Maldonado, Kevin Olusola, and Mitch Grassi. Their work, which is mostly in the pop style, consists of covers of existing songs, sometimes in the form of medleys, along with their original material. Their music is defined by their own arrangement style, tight vocal harmonies, extensive vocal riffing, deep and steady vocal basslines, and a diverse range of vocal percussion and beatboxing.
Pentatonix formed in 2011 and came to prominence the same year by winning the third season of The Sing-Off on NBC, their victory earning them $200,000 and a recording contract with Sony Music. After being dropped from Epic after The Sing-Off, the group formed their popular YouTube channel and distributed their music through Madison Gate Records, a small independent label owned by Sony Pictures that mainly distributes movie soundtracks. The group also makes effective use of social media to interact with their fan base.