Alicia Arenas

The most commercially successful Spanish singer of all time, Alejandro Sanz earned a reputation as an industrious hitmaker in his native country during the 1990s, and by the decade's end, he'd expanded his fan base internationally, broadening his style beyond romantic ballads and collaborating with fellow Latin superstars, most memorably Shakira. A talented and charismatic performer, Sanz proved immensely popular even with his debut album, 1991's Viviendo de Prisa, which was a number one hit in Spain. It wasn't until several albums later, 1997's Más, that he was able to break into the international market, however, thanks to a key hit single, "Corazón Partío," that transcended his core female audience.