Latin pop booms have been happening on and off in the US virtually since the Spanish-American War; this chapter contains hits from at least three of those booms (even if Drake and Justin Bieber’s recent trop-pop moments are more ‘vaguely Caribbean’ than authentically Latin). “Macarena” indulged America’s love for rigid, rhythmic square dances, while “Livin’ La Vida Loca” gave them license to go bananas. And Santana’s Supernatural is the rarest of things: a legacy artist releasing a future-thinking album that changed the course of pop.