Vocalist Danny Bowes and lead guitarist Luke Morley first played together when they were 15-year-old classmates in London. The two later formed the band Terraplane, which released two albums but broke up in 1988. Bowes and Morley then formed Thunder, recruiting drummer Gary James, bassist Snake and rhythm guitarist Ben Matthews. The group's first two singles both hit the U.K. Top 40 and earned Thunder a support slot for Aerosmith and a gig at the 1990 Monsters of Rock festival. Backstreet Symphony, released just a year and a half after the group's live debut, reached the U.K.'s Top 20 and was certified gold. The follow-up, Laughing on Judgement Day, appeared in 1992, followed three years later by Behind Closed Doors.