Ricky Martin's "Be Careful (Cuidado Con Mi Corazon)" stands as a pivotal moment in his career, marking his transition from the Latin pop mainstream to a sophisticated, mature sound. Released as a single from his 1999 album of the same name, the track blends traditional Latin rhythms with a polished, adult-contemporary production style that defined the late 90s Latin ballad era. The song explores themes of emotional vulnerability and the fragility of love, delivered with a vocal performance that showcases Martin's range beyond his earlier hits. It remains a significant song in his discography, reflecting the artistic growth and international appeal that characterized his work during this period.