How would you describe the new Sugababes single?

Here is something which caught our eye from the top deck of the Number 319 on the way to PJHQ this morning.

Is this the first instance of the word 'spanking' on a billboard not advert­ising a terrible film whose only decent review is from Neil Sean?

Other words we would use to describe the single:

1. Yellow.

It is probably just as well we are not allowed to decide what goes on 20ft bill­boards in and around London. :(