Answer
Neil Diamond's last No. 1 single on the Billboard Hot 100 was "Heartlight". The song was released in 1982 and reached the top of the chart on February 11, 1983. "Heartlight" was written by Diamond and Barry Gibb, and produced by Gibb and Albhy Galuten. The song is about a man who is searching for love and hope in a world that seems dark and empty.