it's excatly what rmarques821 said : after the verse "sultans played creole", Mark started to play the last solo instead of the first one.
All other 3 members were right, but he made the mistake. So that's why he played it again, syaing "let's do it properly" it's a shame because we don't have southbound again on video because fo this !
for those who remember, I told some months ago that it did happen almost the same thing at my wedding when I played sultans : when I played the last solo, other members played the verse chords progression, so it did the same result, but the difference is that I wasn't wrong !