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Having recently eclipsed 6 million subscribers and 520 million cumulative views, the PTXOfficial is currently the 13th most subscribed-to music channel on YouTube, having surpassed the subscriber totals of both Avicii and Beyoncé.
Pentatonix consists of lead vocalists Scott Hoying (22), Kirstie Maldonado (22) and Mitch Grassi (22), vocal bass Avi Kaplan (25) and beatboxer Kevin K.O. Olusola (25). Since their debut in 2011, the quintet has released 3 EP s (PTX Volume 1, PTXmas and PTX Volume 2) selling over 500,000 copies combined.