Who wrote and performed the song "Sweet Caroline"?

The song 'Sweet Caroline' was first released in September 1969 as a single. It was written and performed by Neil Diamond. After decades and decades, Diamond at age 65 publicly revealed that President John F. Kennedy's daughter (Caroline) was the inspiration for his hit song "Sweet Caroline." Several years later this song was released as a part of Diamond's 'Hot August Night album" (a double album about Diamond's 1972 August concert).

Because of the great popularity of the song 'Sweet Caroline', Neil Diamond and his record company were able to sell over 1,790,000 units in total. Since the song's initial release until 1972, profit from the song's record sales reached approximately 2.5 million dollars (US Dollars).