When history remembers pop music in the 2010s, it might remember the decade’s technology—the continued decline of the CD and then the mp3, the rise of streaming, the small resurgence of vinyl—more than the recorded output. But there’s always been a symbiotic relationship between the technology of pop and the music’s content. The music of this decade was defined by how close we felt to the people making it—songs and albums were received as direct transmissions from artists to fans, and thanks to social media the distance between the two never felt shorter. Call it the new pop intimacy, where artists connected with our...