The singer and presenter first debuted her new cropped bouffant during a photo shoot earlier this month (15 April).
A couple of weeks later, she showed it off again at the Disney Radio Music Awards.
The star channeled her rock chick roots on the red carpet, having swapped her lilac bob for something a little more androgynous.
But while it was a big transformation, her tresses were still long enough to be clipped up at the back.
Fast forward a couple more days and Kelly shared a snap of a chunk of hair in her hand followed by a close-up of a VERY closely-shaved 'do!
She's enhanced the colour too, ditching her pale hue for a more striking shade of purple.
Kelly added the caption: 'I thought why not take it a little further you only love once!'
We can't wait to see what she does next!
What do you think of Kelly's new look? Tell us below as the best comment from across the site each week wins £50!