Los Hermanos Rosario is a popular Dominican merengue band formed in 1986. The group consists of brothers Julio, Tony, Júnior, and Rafael Rosario, who are known for their energetic performances and catchy melodies. They have released numerous albums and are celebrated for their contributions to the merengue genre. The band gained fame in the 1990s with hits like "La Dueña del Swing" and "La Cumbia de los Pajaritos." Their music often features vibrant rhythms and lively instrumentation, making them a favorite at parties and celebrations. Los Hermanos Rosario continues to perform and influence new generations of musicians.