[2] During his period as a student of the University of Puerto Rico at Mayaguez, Perez met and befriended such legendary figures as politician Jose Enrique Arraras, basketball star Fufi Santori and sportscaster Elliott Castro.
[3] (in Spanish) Pérez formally started his career with the singing group Haciendo Punto en Otro Son with four debut concerts at a night club called "La Tea" in San Juan (October 30 – November 2, 1975).
This band, whose original members included Irvin García, Jossy Latorre, Nano Cabrera and Tony Croatto, toured all of Puerto Rico and some other countries, recording various albums and 8-tracks.
In Los Rayos Gamma, he teamed up with Sunshine Logroño, Jacobo Morales and Horacio Olivo to satirize Puerto Rican politics.
In 1995, he was credited with coining the term chupacabra, referring to creatures around Puerto Rico with a habit of attacking and drinking the blood of livestock, especially goats.
[8] During 2017, he also offered conferences in Puerto Rico and in United States about the island's current situation, based on the contents of this book.
In 2017 he wrote a novel, Un espejo en la selva ("A Mirror in the Jungle", ISBN 9786070737572), about a Puerto Rican psychologist kidnapped by FARC militants in Colombia.
[9] Pérez writes a column for El Nuevo Día called Punto de Vista (Point of View).