The former X Factor star ditched her brunette locks for a dark blonde 'do last week (3 August), and documented the whole transformation on Instagram!
She first snapped a 'before' selfie whilst sitting in the hairdresser's chair, showcasing a huge brunette mane and make-up free complexion.
A few hours and several bottles of dye later, Katie emerged with a sleek new 'do which was a mixture between honey blonde and caramel brown.
She completed her makeover with a slick of raspberry red lippy, aviator sunnies and a rock chick pose.
Katie joins a host of celebs who have lightened their locks for summer, including TOWIE's Sam Faiers who recently opted for a pretty ombre hue.
Changing your colour with the seasons? We're so down with that!
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