After winning the title of champion in the reality show The Sing-Off, Pentatonix was signed to a record label, enabling them to pursue their goal of a musical career. The group promoted their then-upcoming EP through YouTube videos with covers of pop songs such as "Somebody That I Used to Know" by Gotye featuring Kimbra, "Gangnam Style" by PSY, and "We Are Young" by Fun, which went viral.

Released in 2013, PTX, Vol. 2 is the third EP from the Arlington, Texas-based a cappella ensemble Pentatonix, who won season three of NBC's The Sing-Off vocal competition. As the follow-up to the group's 2012 EP PTX, Vol. 1 and holiday-themed PTXmas, PTX, Vol. 2 features more of the band's a cappella versions of contemporary pop hits. Included are such covers as Macklemore & Ryan Lewis' "Can't Hold Us," Calvin Harris and Ellie Goulding's "I Need Your Love," and even a Daft Punk medley that combines the songs "Harder, Better, Faster, Stronger," "Digital Love," "One More Time," and "Get Lucky." Also included are several of the band's unique original songs, including "Natural Disaster, "Love Again," and "Run to You."