Roy Stephan Rosello Diaz (born May 1st, 1970 in Rio Piedras, Puerto Rico) is a former member of Menudo.
Rosselló was a member of Menudo from mid 1983 to January 1986. He substituted Miguel Cancel and debuted in the album A Todo Rock. He was replaced by Sergio Blass in 1986. Rosselló did not contribute a lot of lead singing for Menudo. Most of the time, he sang backing. During his time, Menudo reached great popularity in Asia, more specifically in the Philippines and Japan. They had hits like Indianapolis and Like A Cannonball, which was featured on Cannonball Run 2.
Since 2003 Roy lives between Puerto Rico and Brazil, spending more time in Brazil, where he has four children, all Brazilians. When Roy is residing in the Caribbean he works at his father's company, selling million-dollar mansions. In 2009 he tried to raise funds to make a show meeting with former Menudos. He is the former brother-in-law of Mara Croatto, who was once married to his brother Rey Rosselló. He is also the nephew of former Puerto Rican governor Pedro Rosselló.
Since 2006, Rosselló runs a Caribbean-themed bar in the city of Campinas, located in the state of São Paulo, Brazil, where he also owns a jewelry store. Since 2009 he lives in the city of Camaçari, located in the state of Bahia. In Bahia, Roy tried unsuccessfully to enter in the Brazilian music scene, when he formed a band of axé and Caribbean music.