Ptx Presents: Top Pop, Vol. IThe sequel to the 2017 Classics EP finds Pentatonix spending a full album singing the big hits of the day a move that isn't all that dissimilar to easy listening albums of the '60s and '70s, where Bacharach David and Lennon McCartney songs were given smooth arrangements designed for the adult contemporary charts. Pentatonix aren't so fusty. They do a medley of "Despacito" and "Shape of You" and cover Kesha, Demi Lovato, and Zedd, while never relying