It was released through Polygram Records Hong Kong on December 18, 1980, as part of her first Cantonese album, Irreconcilable (勢不兩立; Sai Bat Leung Laap).
"Forget Him" is composed in the key of C minor, with a structure of prelude - A1 - A2 - B - interlude - A3 - epilogue, and features flute, string, and mandolin instruments.
James Wong commented that the character "和" in the lyric represents a piece of literal sand and gravel, a result of the record industry's rush to complete the work.
[5] Fifteen years later, the song was covered by Shirley Kwan, as part of her 1995 tribute album 'EX' All Time Favourites.
This new dream pop version was featured in Wong Kar-wai's art house movie Fallen Angels (1995) as the Jukebox song number "1818."