 Boyd approached Manfred Mann singer Paul Jones and suggested that they put one together.Jones, who played harmonica and sang harmony, brought Manfred Mann bandmate Jack Bruce on bass, recruited the Spencer Davis Group's vocalist Steve Winwood and drummer Peter York, John Mayall & the Bluesbreakers's and former Yardbird's guitarist Eric Clapton, and Ben Palmer, a blues pianist friend of Jones and Clapton.Ginger Baker was suggested as the drummer, but either declined or was unavailable.