“As Twin Shadow, George Lewis Jr.’s long-standing romance with the synth-glossed pop anthems of the late 1980s and early ’90s makes him a natural collaborator for Haim, who seem to understand innately how a song can sound both ultra-slick and heartfelt. This smooth sensibility led to two songs Lewis co-wrote for the California trio: “Edge,” a UK deluxe-edition bonus track from 2013’s striking Day A”
