"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 the Love Affair, as well as Town Criers, Carl Carlton, Sandra, 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).