Nash was an electrician when he formed the band Sons of Egypt with Peter Gill and Holly Johnson. In 1980, Gill and Johnson left the band and formed Frankie Goes to Hollywood. Nash followed them later. The first single of the band, "Relax", then reached # 1 in the UK charts in 1984.
After the dissolution of Frankie Goes to Hollywood Nash published in 1999 a solo album entitled Ripe. Later, he released a second album under the title Le Grande Fromage in 2002. During the reunion tour of Frankie Goes to Hollywood declined from Nash to attend. in 2008 he released a third album under the title A Lo Minimo. Nash took a version of the song "You'll Never Walk Alone " at the funeral of his father in July 2009. Nash's nickname is Nasher.