Founder Nelson Zapata was born and raised in the Dominican Republic, but after moving with his family to New York while in middle school, he began listening to American sounds as well. He began recording with the single "Brinca!!," with the help of bilingual rapper Magic Juan. It became a big hit in South and Central America as well as Latin sections of urban America. The debut Proyecto Uno LP, Todo el Mundo, did similarly well, and the group toured Ecuador, Colombia, Venezuela, Chile and Argentina.

By 1993, Proyecto Uno sought to become more popular in the American market, and that year's album In Da House featured two American freestyle vocalists, Johnny Salgado and Erik Morales. The single "El Tiburon" became popular on the Latin and club charts, while 1996's New Era also did well. Remixes followed in 1998. ~ John Bush