Southern Nights...Allen Toussaint.

Another singer that I know nothing about....So "Wikipedia" has come to the rescue and this is what they say !

Allen Richard Toussaint (January 14, 1938 – November 10, 2015) was an American musician, songwriter, arranger, and record producer. He was an influential figure in New Orleans rhythm and blues from the 1950s to the end of the century, described as "one of popular music's great backroom figures." Many musicians recorded Toussaint's compositions. He was a producer for hundreds of recordings: the best known are "Right Place, Wrong Time", by longtime friend Dr. John, and "Lady Marmalade" by Labelle.

      In 1973 Toussaint created the Sea-Saint recording studio in the Gentilly section of eastern New Orleans. Toussaint began recording under his own name, contributing vocals as well as piano. His solo career peaked in the mid-1970s with the albums From a Whisper to a Scream and Southern Nights.....

Two years later, Glen Campbell covered Toussaint's "Southern Nights" and carried the song to number one on the pop, country, and adult contemporary charts.

      6. Southern Nights.