Easy: put a donk on it.
httpv://www.youtube.com/watch?v=ZhixH_XuDQY
Of course when we say 'improve on' what we sort of mean is 'make ten times worse', but this Alex K version (which has apparently been knocking around since February) is not with its charms.
BTW it is currently pop fact that 'Call The Shots' is the best song of Girls Aloud's career.