Before she was ‘Victoria Beckham: British Fashion Award-winning designer’, she was Posh Spice—a nickname she probably deserved, the tastemaker concedes in a new documentary.

‘I was called “Posh” because I liked the nice restaurants, and the nice clothes, and that was my character,’ Victoria Beckham says in Spice Girls’ Story: Viva Forever, a documentary airing tonight on ITV. ‘I didn’t smile, even in those days. There was this very strong image.

‘And I am very much that person, even now. I get ready to go out sometimes and I catch myself in the mirror and I’m like, "Oh my God, I’ve turned into that person.”’

Still: ‘I’m really proud to be Posh. I’m so proud to have been in the Spice Girls and to have achieved everything I have. I’m the luckiest girl in the world, I really am. No one knows that more than me.’

The programme traces the girl band’s rise to fame through interviews with Beckham, Geri Halliwell, Melanie Brown, Emma Bunton and Melanie Chisholm, and with the creative team behind Viva Forever, the new musical based on the music of the Spice Girls.

The Spice Girls earned up to $75m per year during their mid-‘90s heyday and have sold more than 80 million records worldwide. But global success and legions of screaming fans didn’t make the dating scene any easier for Beckham in the pre-David years, she claims.

‘There was a stage where someone wrote once how every woman wanted to be one of us and every man wanted to date one of us,’ she says. ‘Not that anyone wanted to date me. I think everyone wanted to sort of like just brush my hair.’

See the Spice Girls celebrating the Viva Forever opening night... and read ELLE's take on the musical here

Revisit Spice Girls style through the ages

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