"Emotion" is a song written by Barry and Robin Gibb and recorded by Australian singer Samantha Sang for the Private Stock label. The song was Sang's only hit single, reaching No. 3 on the Billboard Hot 100 in 1978. Billboard ranked it as the No. 14 song for 1978. There is a promotional video made for this song. The Bee Gees recorded their own version of the song and it was released on their 2001 collection titled Their Greatest Hits: The Record. They originally recorded the track in 1994 as part of an album called Love Songs which was never released.
Originally, when Sang arrived in Miami, instead of recording "Don't Throw it All Away", Barry offered her a new song "Emotion". On this track, Sang sticks to a breathy-like Barry's sound. Barry himself provided harmony and background vocals. Barry also uses his falsetto on this track. The B-side was "When Love Is Gone" instead of another Barry Gibb song, which was the new Frances Lai composition. It was recorded around April 1977 in Criteria Studios in Miami, Florida around the same time as Barry contributed writing and producing "Save Me, Save Me" for the band Network. Blue Weaver identified the musicians as shown from memory. On the session, Joey Murcia plays guitar, George Bitzer on keyboards, Harold Cowart on bass and Ron "Tubby" Zeigler on drums. It was originally intended for use in the 1977 film Saturday Night Fever, but ended up being featured in the film The Stud (1978) starring Joan Collins. Also in 1978, Emotion was used as the B-side of Johnny Mathis and Deniece Williams' single "Too Much, Too Little, Too Late", which reached number one in the U.S.