Fans of 1 Girl Nation’s Spirit-rousing debut album will find the same sort of upbeat sparkle lighting up their five-track Christmas EP. The quartet go for a high-gloss sound that showcases their lively vocal blend amid propulsive beats and synthesized backdrops (seasonally accented with sleigh bells). The original holiday tune “Joy” kicks off the EP with a burst of ‘60s girl group–style exuberance. 1GN’s takes on “Angels We Have Heard on High" and “Go Tell It on the Mountain” put a millennial spin on these timeless carols. The surprise here is a passionate cover of Frozen's “Let It Go,” offered as a wintertime anthem of personal empowerment and renewal.