LONDON – APRIL 12: Girls Aloud (L-R) Nadine Coyle, Nicola Roberts, Cheryl Tweedy, Kimberley Walsh and Sarah Harding, launch a multi million pound sponsorship deal with Sunsilk at 24 London on April 12, 2007 in London. Each girl will promote a different variant of shampoo and conditioner suitable for their hair type. (Photo by Gareth Cattermole/Getty Images)