The critically-acclaimed Quadrophenia marked the British band's second Rock Opera and it raised the bar for Rock albums as an art form and hit #2 on the Billboard album chart. Founding members, Roger Daltrey and Pete Townshend will be joined by Zak Starkey (drums), Pino Palladino (bass), Simon Townshend (guitar/backing vocals), Chris Stainton (keyboards), Loren Gold (keyboards/backing vocals) and Frank Simes (musical director, keyboards/backing vocals). The Who is an English Rock band formed in 1964. Quadrophenia marked the band's sixth album. The album's title is a variation on the popular usage of the medical diagnostic term schizophrenia and exemplifies the four varying personalities of the band members who created the album.