Alexander 23 is a pop producer who also makes gentle, lovelorn songs of his own. He emerged in 2019 with a vibe that was part heartbroken slacker and part playfully sparse, software-constructed pop on the single "Dirty AF1s." Maintaining his public anonymity even while he racked up streams for tracks like "IDK You Yet" and the Selena Gomez collaboration "Rare," the singer's identity was later revealed as Illinois native Alexander Glantz. His second EP, Oh No, Not Again!, appeared in 2021. That same year, he gained yet wider attention co-producing Olivia Rodrigo's chart-topping...