La Beriso was formed in 1998 by singer Rolando Sartorio, who attributes his music's emotional depths to his sisters' deaths. The Argentine group became arena stars in the '10s through sheer persistence and a sound that expunges sadness with passionate hard-rock intensity—embodied by Pablo Ferradas' spirited guitar solos in tracks like "No Me Olvides" (Don't Forget Me). Sartorio often evokes his past in songs like "Canción para Mamá y Papá", which assigns one sentimental midtempo verse per parent. Outlier hit "Madrugada", a sad yet breezy early-morning meditation, suggests a refreshing new direction for these street rockers.