The irresistible hooks and haunting vocals of bedroom production “Ocean Eyes” made Los Angeles teen Billie Eilish an internet sensation. This debut EP nudges things along nicely with its minimalist beats and lifting-yet-sinister lyricism. A rerecorded “Ocean Eyes” remains unnervingly assured, while the infectious pop of “Bellyache” holds a surrealist, macabre edge. Her voice—melancholy, theatrical, and soaring—impresses throughout and bears comparison to Lorde and Lana Del Rey. It’s hard to believe this all comes from a 15-year-old.