The Heat Is On is the thirteenth studio album by American soul and funk group The Isley Brothers, released June 7, 1975, on T-Neck Records and Epic Records. Written and produced entirely by the group, the album was recorded in 1975 at Kendum Recorders in Burbank, California. The Heat Is On features musical elements of rock, and is divided between uptempo funk songs and soul ballads.
The Heat Is On sold 500,000 copies in its first month of release and spent 40 weeks on the U.S. Billboard Pop Albums chart. It became the Isley Brothers' first number-one album in the United States. The album received generally favorable reviews from publications, including The Village Voice, Melody Maker, and Rolling Stone. Music critics have since cited the album as among the Isley Brothers' best work.