The author decided to ditch her golden blonde hair, going a tad darker for spring by dying her locks a gorgeous chestnut brown.
Such a drastic colour change can wreak havoc with your tresses, but luckily Katie was in very capable hands.
Her new locks came courtesy of hair supremo Mikey Kardashian, who tends to the tresses of a whole host of stars including The Saturdays' Rochelle Humes, Made In Chelsea's Binky Felstead and Lucy Watson, and TOWIE's Lauren Pope.
"@MKardashian just gave me hair makeover I look very glamorous 4 2nite whilst I stay in &sterilise belles equipment!" she wrote.
And, clearly pleased with his handiwork, Mikey also posted a snap on his Twitter account, writing: "Love finding GORGEOUS pics of @KatiePiper_ on my phone. How stunning does her hair look here?!!"
It looks like Mikey created a multi-tonal effect by adding caramel brown highlights before styling Katie's mane in a voluminous Cheryl-esque blow-dry. Love!
Now we've just got one question Katie - who has more fun, blondes or brunettes?
What do you think of Katie's new hair? Let us know by commenting below as the best comment across the site each week wins £50!
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