The American funk and soul band, Tower of Power, emerged from Oakland, California in 1968 to become known for their powerful rhythm section, legendary horn section and high-energy live performances. Emilio Castillo and Stephen “Doc” Kupka established the group in 1968 to create a distinctive musical style that blended soul, funk, jazz and R&B elements.

Bump City (1972) brought the group their first success through “You’re Still a Young Man” and Tower of Power (1973) produced hits such as “So Very Hard to Go” and “What Is Hip?”