"Heartlight" is a song written by Neil Diamond, Carole Bayer Sager and her then-husband, Burt Bacharach, and recorded by Diamond in 1982. It is the first track on Diamond's 1982 album, also titled Heartlight, and reached number five on the Billboard Hot 100, becoming his thirteenth top 10 hit on the chart. It also spent four weeks atop the adult contemporary chart in late 1982, and was the last of his eight #1s on that chart. Reportedly, it was inspired by the 1982 film E.T. the Extra-Terrestrial, and Diamond allegedly settled with MCA/Universal for $25,000, due to its supposedly drawing on the material of the film.

Neil Leslie Diamond is an American singer-songwriter. He has sold more than 130 million records worldwide, making him one of the best-selling musicians of all time. He has had ten No. 1 singles on the U.S. Billboard Hot 100 and Adult Contemporary charts: "Cracklin' Rosie", "Song Sung Blue", "Longfellow Serenade", "I've Been This Way Before", "If You Know What I Mean", "Desirée", "You Don't Bring Me Flowers", "America", "Yesterday's Songs", and "Heartlight". Thirty-eight songs by Diamond have reached the top 10 on the Billboard Adult Contemporary charts, including "Sweet Caroline". He has also acted in films, making his screen debut in the 1980 musical drama film The Jazz Singer.