Stars of the grupero movement of the 1990s, Guardianes del Amor have dedicated themselves to keeping up with the times, listening to hip-hop and even incorporating bits of urban regional into their sound in order to remain relevant to younger listeners (thanks to A. B. Quintanilla's influence). But that willingness to experiment hasn't changed their romantic focus; starting with the chart-topping "Cuatro Palabras," the group lives up to their name, defending love against all real or imagined invaders and prolifically releasing records at the same time.