Boss of Italians Do It Better & King of the disco re-edit! His soundcloud page is all you need if you like music, honest. He will stretch the loop out right until it's about to become annoying and then hit you with the epically good bit. eg

http://soundcloud.com/mike-simonetti/louie-louie-mike-simonetti-re-do
http://soundcloud.com/mike-simonetti/express-yourself
http://soundcloud.com/mike-simonetti/fleetwood-mike-mike-simonetti-edit
http://soundcloud.com/mike-simonetti/dont-fix-it

Any more fans/particularly good examples/good disco re-edits?