I thought it was a very strange song to give Kellie and Kevin for that kind of dance, but despite that, they did pretty well with it. Helen and Alijaz were another pair who got pretty unsuitable music but made a decent fist of it (and would have been okay if they hadn't been against such a good dance-off opponent).
Anita, on the other hand, had a fantastic song which would have been utterly brilliant if performed well. It wasn't performed very well, but was so wonderfully staged that it carried them through anyway.