The mum-of-five debuted her sleek brunette bob on an episode of Loose Women, and we have to say, both the colour and sophisticated cut look fab on her, and the shoulder length style is a great versatile choice.
However, don't expect to see Katie's hair dark for long - it's said that her makeover is actually a wig, so she may be back to blonde any day now.
Having previously sported grey and purple wigs on the ITV show, who knows what shade she'll opt for next...
- Tested: Best and worst sun creams
- Best and worst chocolate bars for your diet
- Healthy cereal: The best and worst cereals revealed
- Biscuits: The best and worst revealed
- Yogurts: best and worst for your diet revealed!
- Best bob hairstyles
- Breads: Best and worst loaves revealed
- Cereal bars: the best and worst revealed
- How to have a healthy takeaway: The best and worst options on the menu