PTX, Vol. III (Volume 3) is the fourth extended play album by the a cappella group Pentatonix. It was released on September 23, 2014 by RCA Records, although it was released earlier in Australia on September 19, 2014. The extended play contains four covers as well as three original tracks ("On My Way Home", "See Through" and "Standing By"). As of October 23, 2015, PTX, Vol. III has sold 201,226 copies

Pentatonix is the eponymous fourth studio album by American a cappella group Pentatonix, to be released on October 16, 2015. The release date was announced on Twitter by a series of pictures featuring the five band members released over a five day-span, with one band member added to the picture each day, culminating in the date being revealed on August 28.It is the band's seventh release. The first release of the band to feature only original material (except bonus tracks in its Deluxe versions), Pentatonix also marks the first time band members receive individual songwriting credits for each tracks.

Under The Influence sees the acclaimed a cappella group reimagining a selection of their all-time favorite songs alongside many of the superstar artists and undisputed music icons that made them famous. Produced by Mark Kibble, founding member of the legendary a cappella group Take 6 and one of Straight No Chaser's primary influences, the album includes unprecedented collaborations with some of popular music's best and brightest - including Phil Collins, Dolly Parton, Rob Thomas, Seal, and Jason Mraz - as Straight No Chaser put their distinctive and inimitable spin on songs known and loved the world over.