

The success of the song also helped its album, The Heat Is On, reach number 1 on the pop chart. "Fight the Power" gave the brothers their first song to peak in the top 20 on three different charts. Due to its strong dance flavor, the song was played heavily at dance clubs helping the song to land at number 13 on Billboard's dance chart. The song was released in May 1975 and became one of the group's most popular recordings, reaching number 1 on the R&B singles chart and crossed over to the pop charts reaching number 4 on the Billboard Hot 100. As was with the majority of their recordings during the so-called 3+3 era, Ernie Isley and Chris Jasper had to share composition and lyrical credit with the other Isley members.

Though the track had a unison lead style, onstage during performances, Ron Isley would sing the majority of the song with his older brothers chipping in during some parts. Later, the trio added in the background chant, "fight it!" to merge in with the brothers' vocal ad-libbing near the end. The song reflected a negative opinion of authority figures, a feeling shared by all the band members, which can explain the intensified vocalizing by Ron, Rudy, and Kelly. When asked why he said the word, Ron simply replied, "because it needed to be said" and "it's what people want to hear." Ernie was taken aback that Ron had uttered "bullshit". After playing the track on his guitar to his older brothers, Ronnie, Rudy, and O'Kelly, the vocal trio cut a unison lead vocal track in one take. The song was written almost fully by Ernie Isley with additional instrumental background composition by the band's keyboardist Chris Jasper. "Harvest" would be featured on the album of the same name and would be released as the first single off that album. The group ended up recording both songs on the same day and eventually picked "Fight the Power" as the song to release first. The song was sparked in a 1975 recording session in which guitarist Ernie Isley, inspired by the news, wrote two songs: "Fight the Power" and an anti-poverty ballad titled " Harvest for the World".
