Yes are an English rock band who achieved worldwide success with their progressive, art, and symphonic style of rock music. They are regarded as one of the archetypal bands and pioneers of the progressive genre, and have survived multiple trends within popular music. No less than 16 musicians have been a part of the group's line-up, with its current form comprising singer Benoît David, bassist Chris Squire, guitarist Steve Howe, drummer Alan White and keyboardist Geoff Downes. Yes have sold close to 50 million albums worldwide.