Whether they are indulging in the classic boy-band antics of “No Le Hablen de Amor” or exploring the more mature aesthetics of “Qué Le Importa a la Gente,” CD9 display the many facets of their collective musical personality through their videos. Drag-race thrills set the pace for the dembow-driven “Lío en la Cabeza,” but it's back to teen-pop basics for “Ángel Cruel.”