Since his debut, American Teen, Khalid has quietly, unassumingly, persistently infiltrated the world of pop. By collaborating with a wide range of artists on hit after crossmarketed hit, the R&B singer made his warm, shaky, slightly slurred baritone an instantly recognizable radio ingredient across genres: musical associates include Logic on the anti-suicide anthem “1-800-273-8255,” Normani on the longing, hesitant duet “Love Lies,” and Shawn Mendes on “Youth,” which they performed at the Billboard Music Awards with the Marjory Stoneman Douglas High School choir to protest gun violence. After the release of his second album, the restrained, radiant Free Spirit, he became Spotify’s biggest global artist, with over 50 million monthly listeners. A shy, dreamy singer, Khalid’s sad songs are anxious yet resilient, and his love songs blush deeply. With Clairo.