Pentatonix first came to audiences' attention during their winning run on the third season of NBC's The Sing-Off in 2011. Since then, Pentatonix have built a loyal following with a distinctive brand of vocal pop that touches on rock, R&B, and EDM, all without the aid of any instruments. A Pentatonix Christmas is their fourth studio album and their second full-length holiday album. Featuring two new original songs, "Good to Be Bad" and "The Christmas Sing-Along", A Pentatonix Christmas debuted on the Billboard 200 at number 3 with 52,000 albums sold in its first week. The album also debuted atop the Billboard Holiday Albums chart, their second number one on that chart after That's Christmas to Me.