Willie Rosario (born April 27, 1924), is a Puerto Rican musician, composer and bandleader of salsa music. He is also known as Mr. Afinque.
Early years
Rosario (birth name: Fernando Luis Rosario Marín) was born and raised in Coamo, Puerto Rico, into a poor, but hard working family. His parents realized that as a child Willie was musically inclined and had him take guitar lessons at the age of six.