Weight and gravity make it difficult to get or keep curl in hair of length.  No doubt Cat Deeley had styling product dried in her hair to begin the process, then touching up with different sized irons can give this style its look.

Updos are any hairstyle where the length is pinned up onto the head, and they are fashioned either high in the crown area, in the center back as a dancer or athlete would wear or along the nape of the neck at the bottom of the occipital bone.  Here, U.K.'s favorite TV personality, Cat Deeley, is wearing a low riding formal style which is not only elegant, it's preferred on the heads of those who do not wish a high riding style to emphasize a long face or high forehead..

Summer has left us and so has the platinum blonde color so popular during the season.  Fall has toned the golds down to a honey shade as Cat Deeley demonstrates here.