Placebo is an alternative rock band formed in London in 1994. The band currently is comprised of Brian Molko and Stefan Olsdal. The band formed when Molko and Olsdal, who went to the same school but apparently never spoke, met again by chance in London and subsequently formed 'Ashtray Heart'. Drummer Steve Hewitt left the band on October 1, 2007, citing "personal and musical differences".[1]