The song was written in 1971 by Clarence “Gatemouth” Brown, a long-time resident of Slidell, Louisiana.
Live 04/16/83 in Hamburg, Germany: Clarence “Gatemouth” Brown (guitar/vocals), Homer Brown (tenorsax), Bill Samuell (tenorsax), Joe Sunseri (baritonesax), Craig Wroten (piano), Miles Wright (bass), Robert Shipley (drums).
HT Dick Clark for bringing this to my attention.