Raised by his mother in Guaynabo, Puerto Rico, from the age of six Crespo served a long apprenticeship. Launching his career in 1988 as a member of the Willie Berrios Orchestra, he spent two years with the Lenny Perez Orchestra and six years with the Toño Rosario Orchestra. Leaving Rosario's group in 1994, Crespo briefly attended the Metropolitan University of Puerto Rico, where he studied business administration. An invitation to join Grupo Mania, however, was too tempting to resist. Agreeing to join the popular Latin band, he wrote and sang on their hit "Linda Es." He left the group after three years to focus on his solo career. ~ Craig Harris, All Music Guide