Thrift Shop – Pentatonix (Macklemore & Ryan Lewis Cover) [VIDEO]Thrift Shop – Pentatonix (Macklemore & Ryan Lewis Cover) [VIDEO]Pentatonix is a group from Texas that one the third season of The Sing Off. Check 'em out as they cover the hottest song out, Thrift Shop, by Macklemore and Ryan Lewis.BristolBristol