We wondered what Cheryl Cole was doing getting a personal tour of the Matthew Williamson store by the designer himself the other day. Now, we have the answer. She was picking out her dip-dye maxi dress for Wednesday night's National Television Awards (below) - and stocking up on X Factor outfits at the same time. ‘Cheryl came into the store to pick out one of Matthew's dresses,' a Matthew Williamson insider told us last night. ‘They were having a laugh and then Trudi Styler happened to come into the store so they all shopped together.' Whilst choosing her dress, the X Factor judge - and our current style crush - also chatted to Matthew about picking out one of his S/S '09 dresses for her show wardrobe. She apparently eventually decided on this sequinned number (check it out on the catwalk below) and is expected to wear on tomorrow night's show. Hmm, wonder what fellow design guru and X Factor fan Richard Nicholl will make of her choice... We can't wait!