London, Sep 7 - Former Spice girl Victoria Beckham is reportedly devastated after learning she won't be gracing the cover of US fashion bible Vogue because she has already posed for the publication's main competitor Elle.

Posh, as she is fondly called, is seeking the approval of the heavyweights at American Vogue, and has been on a strict diet while sticking to haute couture fashion in a bid to impress magazine bosses and land the chance of appearing on the cover, reports dailymail.co.uk.

But she has reportedly been snubbed by magazine editor Anna Wintour because she has appeared on the cover of rival fashion publication Elle.

'Victoria hoped to land the Vogue cover but it fell through weeks ago. She posed for Elle instead and now Vogue won't consider her for at least four months,' said a source.

The style icon has already appeared on the cover of British and Russian Vogue.