Almost a month since releasing “Monstruo,” the first single off his upcoming sophomore album and his collab with Feid , acclaimed Puerto Rican producer Tainy finally teams up with Colombian superstar Karol G . After a decade of parallel careers that never intertwined, the two artists are joing forces with the release of “Única.” The song is an emotional and melancholic dusk-dream that has Karol — fresh off two Latin Grammy wins, including Song of the Year — reminiscing about a passionate