Victoria Beckham revolutionised her school uniform with extra socks.

The Spice Girls star-turned-designer has always taken a keen interest in fashion and found a way to make her compulsory school outfit look less ''horrific'', with the idea quickly catching on amongst her classmates.

She recalled: ''I created a fashion where you'd wear two pairs of socks - one pair on top of the other because it kind of bagged around the ankle. In my eyes, it changed how you looked in this horrific school uniform. It spread like wildfire.''

And the 39-year-old star - who has children Brooklyn, 14, Romeo, 11, Cruz, eight, and Harper, two, with husband David - was such a fan of designer labels, she used a Gucci carrier bag to tote her books and belongings to school.

She said: ''It was a Gucci carrier bag - not a proper Gucci bag, a carrier bag that I would lug all of my books to school in. I would use that day in day out, until the bottom of the thing fell out.''

Despite her Posh Spice image, Victoria also admitted her famous black dress she wore in the Spice Girls was high street rather than designer.

Speaking in her Skype documentary 'Five Years - the Victoria Beckham Story', she said: ''The first dress I wore in the Spice Girls that everybody thought was a little black Gucci dress was actually from Miss Selfridge. I couldn't have afforded a little black Gucci dress.''