Pentatonix is comprised of lead vocalists Scott Hoying (22), Kirstie Maldonado (22) and Mitch Grassi (21), vocal bass Avi Kaplan (24) and beatboxer Kevin “K.O.”
Pentatonix (often abbreviated as PTX) is an American acappella group consisting of five vocalists originating from Arlington, Texas. Their work, which is mostly in the pop music style, consists of covers of existing songs, sometimes in the form of medleys, along with some original material.
http://pentatonixthealbum.ptxofficial.com/
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