Placebo are a British rock band from London, England, formed in 1994 by singer and guitarist Brian Molko and bass guitarist Stefan Olsdal. The band was joined by drummer Robert Schultzberg, who was later replaced by Steve Hewitt after conflicts with Molko. Hewitt left the band in October 2007 and was replaced by Steve Forrest in 2008. To date, they have released six studio albums, six EPs, and twenty-nine singles and have sold over ten million records worldwide. Since their formation, the band have attracted popularity and notoriety in equal measures for their subversive musical content and androgynous image. Their style has progressed since their first album, which featured raw guitar riffs and a fairly minimalistic line-up, with following albums featuring a more diverse and polished sound, including experimentation with synthesizers and other less traditional forms of sound production.