I read the comments of the YouTube video that I linked to see what you were referring to. Although I noticed slight similarities, La Grange has a considerably faster beat. I don't see how the first commenter could have confused the song with La Grange, as they're clearly different.
I do buy off on the theory of the 2nd commenter that John Swihart may have been inspired by La Grange. At least that seems plausible. Still, they are two completely different songs.
Scuzzy; I'm just different.