Q: Name something that might be worn on the foot. Change one letter in it without changing the order of the other letters. The result will name something one might wear on the upper part of the body. What is it? Here's a hint: The thing on the upper part of the body is a two-word phrase.
I can't shake the thought that I should know this. Some days I just can't win.
Edit: Hints: Shake your booty and a non-win could be a tie.