Eclectic a capella group Pentatonix have had a fantastic past few years. November 2013's PTX, vol II marks their third studio album since the group won NBC's televised singing competition The Sing-Off back in 2011.
Since the winning performance on the show, they've embarked on two national concert tours in two years, selling out tickets in over 30 cities, and their debut album, PTX, vol I, peaked at #14 on the U.S. Billboard 200 chart and #5 on the digital chart.
Constantly in demand, the instrument-free quintet have performed everywhere from Sesame Street to Ellen to The Tonight Show, and their YouTube videos have received over 150 million views. Known for their tremendous musical range and unique takes on popular songs—they're not afraid to tackle dubstep, electronic, or hip-hip—group members Mitch Grassi, Scott Hoying, Avi Kaplan, Kirstie Maldonado, and Kevin Olusola have garnered acclaim for their covers of artists as varied as Lorde, Daft Punk, Gotye, Nicki Minaj, PSY, and Fun.