Hamilton, Joe Frank & Reynolds were a 1970s soft rock trio from Los Angeles. The original members were Dan Hamilton (guitar/lead vocal), Joe Frank Carollo (bass/vocal), and Tommy Reynolds (multi-instrumentalist/vocal), all of whom had previously played in The T-Bones, a 1960s band noted for the instrumental hit "No Matter What Shape (Your Stomach's In)".

The group first hit the charts in 1971 with "Don't Pull Your Love". Reynolds left the group in late 1972 and was replaced by keyboardist Alan Dennison, but the band kept the name Hamilton, Joe Frank & Reynolds until 1976. This revised line-up performed the group's biggest hit, 1975's "Fallin' in Love".

The touring T-Bones formed by Dan Hamilton's brother Judd Hamilton hit the road in January 1966 to promote their first single "No Matter What Shape (Your Stomach's In)", an instrumental piece based upon a then-popular Alka-Seltzer TV commercial. After tens of thousands of miles of touring, Dee and Torres decided to leave the band and were replaced by Tommy Reynolds (who would, in 1969, be the lead singer for Shango) and Joe Frank Carollo. "No Matter What Shape (Your Stomach's In)" reached #3 on the US Billboard Hot 100 in March 1966. This revised version of The T-Bones toured the US and Japan. Their third and final album was not commercially successful and they disbanded near the end of 1976.

In 1970, Dunhill Records offered a recording contract to the newly formed Hamilton, Joe Frank and Reynolds. The following year, "Don't Pull Your Love", produced by Steve Barri and arranged by Jimmie Haskell, hit #1 on the Cash Box Top 100, peaked at #4 on the Billboard Hot 100 chart, sold over one million US copies, and was awarded a gold record by the RIAA in August 1971. Two more singles ("Annabella" and "Daisy Mae") charted, but two Hamilton, Joe Frank & Reynolds albums and several other singles failed to register any significant chart action.

Tommy Reynolds left the group in late 1972. Hamilton and Carollo continued touring with various session musicians, such as Larry Knechtel on keyboards and Joe Correro on drums. However, with their lack of success, their contract with Dunhill was cancelled in 1973. With the addition of Alan Dennison and Rick Shull, Hamilton, Joe Frank & Reynolds continued to perform locally.

In the latter part of 1974, they secured another recording deal with Playboy Records on the proviso that they retain the name Hamilton, Joe Frank & Reynolds, even though Reynolds had left the group. Within another few months, they released "Fallin' in Love", which reached #1 on the Billboard Hot 100. It also became their second gold disc and their only song to appear on the UK Singles Chart, where it was licensed to Pye Records and reached #33 in the autumn of 1975.

They followed this success with "Winners & Losers", which reached #21 in 1976, but their next releases, "Don't Fight the Hands (That Need You)" and "Everyday Without You", failed to reach the Top 40. While the band retained their original name on the cover of their Fallin' in Love album, the back cover showcased the more accurate name "Hamilton, Joe Frank & Dennison". For Love & Conversation, their second Playboy Records album in 1976, the band officially changed their name to Hamilton, Joe Frank & Dennison. In 1980, they again disbanded, this time permanently.

Hamilton continued to write and publish songs, and also wrote and recorded a couple of film themes. In late 1993, he became seriously ill and was eventually diagnosed as suffering from Cushing's syndrome. Hamilton died in Los Angeles on December 23, 1994, at the age of 48.