Rodrigo Alejandro Bueno, also known by his stage name Rodrigo or his nickname "El Potro" ("the Colt"), was an Argentine singer of cuarteto music. He is widely regarded as the best, most famous and most influential singer in the history of this genre. Bueno's style was marked by his on-stage energy and charisma. His short, dyed hair and casual clothes differed from typical cuarteto singers with strident colors and long curly hair. During his career, Bueno expanded cuarteto music to the Argentine national scene, remaining one of the main figures of the genre.

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