Tower of Power is an American funk and soul band formed in 1968 in Oakland, California. Renowned for their powerful horn section and dynamic live performances, the band blends elements of jazz, R&B, and rock. The original lineup included founding members Emilio Castillo and Stephen “Doc” Kupka, who played a pivotal role in shaping the band’s signature sound. Tower of Power gained widespread acclaim with hits like “What Is Hip?” and “Soul Vaccination,” earning a dedicated following over the decades. The band continues to tour and record, celebrating their legacy as one of the most influential groups in the funk genre.