The discography of Depeche Mode consists of twelve studio albums, three live albums, eight compilation albums, forty-nine singles, and eight box sets on Mute Records, Sire Records and Reprise Records, as well as fifty-seven music videos (not including remixed and edited versions), ten music VHS/DVDs (not including re-releases), and six DVD singles. Depeche Mode are an electronic music group formed in 1980, in Basildon, Essex, England. The group's original line-up was Dave Gahan (lead vocals), Martin Gore (keyboards, guitar, vocals, chief songwriter after 1981), Andrew Fletcher (keyboards) and Vince Clarke (keyboards, chief songwriter 1980 81). Vince Clarke left the band after the release of their 1981 debut album, and was replaced by Alan Wilder (production, keyboards, drums) who was a band member from 1982 to 1995. Following Wilder's departure, Gahan, Gore, and Fletcher continued as a trio. Since their debut in 1981, Depeche Mode have had forty-five songs in the UK Singles Chart, as well as one US and two UK number one albums (Songs of Faith and Devotion and Ultra). According to their record company, Depeche Mode have sold over 100 million records worldwide.