By Kirsty Mccormack
It was a carefully mastered plan that appeared to fail miserably, but yet Tulisa Contostavlos thought she had had the last laugh.
The 23-year-old spent five hours having her hair dyed blonde yesterday and planned to keep it top secret by wearing black wig.
'For the two paps that just papped me outside the hairdressers.... Sorry guys... GOTCHA! ;-)' she tweeted yesterday with a photo of the wig, but what she doesn't know is that her blonde hair could actually be seen as she left the salon.
Peek-a-boo: Tulisa tries to hide her new blonde hairdo as she leaves the Jamie Stevens hair salon last night but fails miserably
The X Factor judge obviously had wanted to make a grand unveiling of her hair style but that was ruined by whoever placed the black bob wig on her head.
Tulisa even pulled the hood up of her bright blue velour tracksuit as she left the Jamie Stevens Kensington salon but even that wasn't enough to cover her new tresses.
The N-Dubz star had certainly dressed down for her long stint at the hairdressers and teamed the soft tracksuit with white trainers and a blue vest.
She completed her look with dark sunglasses, despite it being dark by the time she left, and carried a white quilted handbag on her left arm.
'Gotcha!' The singer thought that she had fooled the photographers by later posting a photo of her wig on Twitter
Blondes have more fun: Tulisa wore her tracksuit top hood up in another attempt to hide her lighter locks
Her new hairstyle was seen in all it's glory today when Tulisa arrived at London's High Court to settle legal action against her ex-boyfriend Justin Edwards.
Wearing a black mini skirt with a floral top and a beige blazer, the singer had clearly had her locks blowdried to perfection and wore them in a loose curl.
However, it wasn't an entirely smooth transition from dark to light as it has actually been revealed that Tulisa called on X Factor hairdresser Jamie for help after a first attempt to go blonde left her with ginger hair.
This, of course, isn't the first time that Tulisa has sported a lighter hairstyle as when N-Dubz first burst onto the music scene a few years ago, the Camden-born star was a blonde.
Going back to her roots: Tulisa used to be blonde back in 2009 and has obviously decided to revisit that look