Peso Pluma often keeps his parents out of the spotlight, but at one concert in 2023 — his first show in the U.S. — he turned the audience’s attention to Rubi.

In the lead-up to his fourth studio album, Exódo, Mexican hitmaker Peso Pluma sheared off his famous mullet haircut. He headed to a songwriting camp in Miami. And to the chagrin of his fans, he ...