Revlon 9 was formed in 1998 in Stockholm, Sweden. Starting out as a quartet, the group became a duo and synthesized its name into REVL9N. Maria Eilersen (vocals, guitar) and Nandor Hegedüs (bass, keyboards), the two remaining members of REV9N, were noticed for their single "Walking Machine", and released the album REVL9N, subtitled Muscles, in 2006.