Tower of Power (TOP) is an American rhythm and blues band from Oakland, California. Formed in August 1968, the group is centred around a horn section which originally featured tenor saxophonists Emilio "Mimi" Castillo and Steven "Skip" Mesquite, baritone saxophonist Stephen "Doc" Kupka, and trumpeters Greg Adams, David Padron, Mic Gillette and Ken Balzell. The rest of the original lineup included vocalist Rufus Miller, guitarist Willie James Fulton, bassist Francis Rocco Prestia and drummer David Garibaldi.