Tower of Power is an American R&B and funk based band and horn section, originating in Oakland, California, that has been performing since 1968. There have been a number of lead vocalists, the best-known being Lenny Williams, who fronted the band between early 1973 and late 1974, the period of their greatest commercial success. They have had eight songs on the Billboard Hot 100; their highest-charting songs include "You're Still a Young Man", "So Very Hard to Go", "What Is Hip?", and "Don't Change Horses (in the Middle of a Stream)". History In the summer of 1968, tenor saxophonist/vocalist Emilio Castillo met Stephen "Doc" Kupka, who played baritone sax. Castillo had played in several bands, but Castillo's father told his son to "hire that guy" after a home audition. Within months the group, then known as The Motowns, began playing various gigs around Oakland and Berkeley, their soul sound appealing to both minority and counterculture listeners. Castillo wanted to play Bill Graham's Fillmore Auditorium in San Francisco, but he realized he would never get in with a name like The Motowns. The band agreed on Tower of Power and the name stuck. By 1970, the now renamed Tower of Power—now including trumpet/arranger Greg Adams, first trumpet Mic Gillette, first saxophone Skip Mesquite, Francis "Rocco" Prestia on bass, Willie Fulton on guitar, and drummer David Garibaldi—signed a recording contract with Bill Graham's San Francisco Records and released their first album, East Bay Grease. Rufus Miller performed most of the lead vocals on this debut album. The group was first introduced to the San Francisco Bay area by radio station KSAN, which played a variety of artists such as Cold Blood, Eric Mercury, and Marvin Gaye. Augmented by percussionist/conga/bongo player Brent Byars, Tower of Power was released from their San Francisco label contract and moved to Warner Bros. Records. Rick Stevens replaced Rufus Miller as lead singer on 1972's Bump City, which gave the band their first national exposure. This album included the hit single "You're Still a Young Man", which peaked at #29 on the Billboard Hot 100 and was Stevens' pinnacle vocal performance before leaving the band. Emilio Castillo, who co-wrote the tune with Stephen Kupka, told Songfacts that the song was based on a true story about him and a former girlfriend who was six years his senior. Tower of Power, released in the spring of 1973, was the