"Knock on Wood" is a hit 1966 song written by Eddie Floyd and Steve
Cropper and originally performed by Eddie Floyd. The Eddie Floyd
version peaked at number twenty-eight on the Hot 100, and spent one
week at number one on the soul singles. The song has been
frequently covered, first by Otis Redding and Carla Thomas, and
with charting singles by David Bowie and not to be forgotten disco
version by Amii Stewart.
-- from Wikipedia
CONGRATULATIONS TO WEEZELS FOR FTF