Alexander 23

Alexander 23, born Alexander Glantz, is an American singer-songwriter from Chicago, Illinois, working across pop and rock with an intimate, confessional songwriting style. He debuted with the single «Dirty AF1s» in 2019, followed later that year by his debut EP «I'm Sorry I Love You», establishing his voice as a bedroom-pop-adjacent artist blending vulnerable lyrics with warm, melodic production.

His early rise was supported by touring alongside artists such as Alec Benjamin, mxmtoon, and Omar Apollo, and by a Lollapalooza debut in 2019. In early 2020, he sold out his first headlining shows at The Moroccan Lounge before joining Chelsea Cutler's tour, which was cut short by the pandemic. He also contributed a remix to Selena Gomez's «Rare».

His breakout song «IDK You Yet» became his signature hit, significantly expanding his audience across streaming platforms and social media. His catalog, including songs like «High School» and «Cry Over Boys», centers on relatable narratives of heartbreak, insecurity, and growing up, delivered with a distinctly conversational, diary-like tone.