The much-hyped advert that Girls Aloud have made for KitKat has finally hit our screens – but if you haven’t caught it yet, you can watch it here and tell us what you think. The ladies are looking pretty fab (but when don’t they look fab?), and Sarah seems happy to take centre stage for this particular ad, which sees the paps taking a break (see what they did there?) as she leaves a glitzy party…