Willie Rosario (born April 27, 1924),[1] is a Puerto Rican musician, composer and bandleader of salsa music.
In 1962, he signed with the Alegre Records label and traveled and performed with his band in Venezuela, Panama, Colombia, Mexico, Curaçao, U.S. Virgin Islands and all over the United States.
Rosario also produced the following songs with the participation of Gilberto Santa Rosa, Tony Vega, Papo Lucca and Bobby Valentín; "Latin Jazz Go-Go-Go", "El Bravo soy Yo" ("I'm the Tough Guy"), "Too Too Much" and "Willie Rosario y su Ritmo".
In 2000, the Puerto Rican Senate paid tribute to Rosario in recognition of his 40 years in the field of music.
He has also played minor venues, such as Shots Bar & Grill in the Isla Verde Mall in late October 2006.