This tune is from the soundtrack of the movie, Spring Break, which had a cameo by the lithe young tennis player and beer scion Carling Bassett. I remember going to see the teen sex comedy in Times Square and being somewhat disappointed. The poster appears in the video. Bassett shortly thereafter dropped off the tennis tour. The song endures.
Thin Lizzy have a different song with the same name, that features Gary Moore killing it with an epic solo in a live show in Sydney in the 70s.
Bonnie Raitt did a fine version of the NRBQ song. As best as I can tell nobody has been foolish enough to try and top Thin Lizzy and theirs.