Green became a friend and roadie of the already formed thrash metal/hardcore band Outface which was formed in 1985. He then joined the band in 1986 at the age of 15 after the departure of their two former singers. The band consisted of guitarist Charlie Garriga (CIV), bassist Frank Cavanagh (Prong and Filter) and drummer Mark Konopka. They recorded two demos, one in 1987 and the other in 1989. They were then offered a recording deal by a friend from New York, Walter Schreifels (Quicksand, Youth of Today, Gorilla Biscuits) for a recording deal to record for his new sub label of Crisis Records for one studio album, Friendly Green (named after Green's father), released in 1992. Stylistically, their music varied between rock, heavy metal and punk with ska elements. Green was credited as Simon Verde on the Outface release ("Green" is translated as "Verde" in Spanish, Italian and Portuguese). With this lineup they toured and played in many places on the east coast and the south of the United States and one tour in Europe.