"Everlasting Love" is a song written by Buzz Cason and Mac Gayden, originally a 1967 hit for Robert Knight and since remade numerous times, most successfully by Love Affair, as well as Town Criers, Carl Carlton, Sandra Cretu, and Gloria Estefan. The original version of "Everlasting Love" was recorded by Knight in Nashville, with Cason and Gayden aiming to produce it in a Motown style reminiscent of the Four Tops and the Temptations. When released as a single, the song reached No. 13 on the US chart in 1967. Subsequently, the song has reached the US top 40 three times, most successfully as performed by Carl Carlton, peaking at No. 6 in 1974, with more moderate success by the duo Rex Smith and Rachel Sweet (No. 32 in 1981) and Gloria Estefan (No. 27 in 1995). In the UK, "Everlasting Love" was covered by the Love Affair: it achieved No. 1 status in January 1968, eclipsing the Robert Knight original. Also in 1968, a cover by the Australian group Town Criers reached No. 2 in the Australian charts. In the 1990s "Everlasting Love" reached the UK top 20 three times via remakes by Worlds Apart (No. 20 in 1993), Gloria Estefan (No. 19 in 1995) and, most successfully, a charity single by the cast from Casualty that reached No. 5 in 1998. In 2004, Jamie Cullum's version peaked at No. 20. Thus, "Everlasting Love" is one of two songs to become a Billboard Hot 100 top 40 hit in the 1960s, 1970s, 1980s, and 1990s (the other being "The Way You Do the Things You Do") and the only song to become a UK top 40 hit in the 1960s, 1970s, 1980s, 1990s, and 2000s. Robert Knight version The original version of "Everlasting Love" was recorded at Fred Foster Sound Studio in Nashville. According to Cason, the track "had some different sounds on it that, for the time period, were kind of innovative. The string sound is actually a Farfisa organ that Mac came up with, and we used a lot of echo." Robert Knight recalls: "Buzz was into country [music] but Mac was R&B... so we made it more of an R&B song like the rhythm and melody Mac had. I practiced and practiced on with Mac, as he had written the song for my voice and made it mine. Mac used his bandmates: [drummer] Kenny Buttrey, [bassist] Norbert