PTX, Vol. IV - Classics PTX, Vol. IV - Classics is the fifth extended play album by the a cappella group Pentatonix. It was released by RCA Records on April 7, 2017, and is their first EP since 2014's PTX, Vol. III.
Their second work after PTXmas to not feature any original material, the album marks a departure from the group's typical sound, which mostly consists of either modern pop songs or Christmas music, choosing instead to focus on standarts of rock, blues, country, and older pop music.
"Jolene", featuring the original artist, Dolly Parton, earned her and Pentatonix a Grammy Award for Best Country Duo/Group Performance.
- "Bohemian Rhapsody"
- "Boogie Woogie Bugle Boy"
- "Over the Rainbow"
- "Take On Me"
- "Can't Help Falling in Love"