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Somewhere in the world, Sporty Spice is shaking her head. Victoria Beckham chose a surprising pair of shoes to test out a treadmill desk on March 12: Sky-high stilettos!

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"Every office should have one of these," the British designer tweeted. "Work out and work at the same time!! Genius!!" While she didn't share tips on how she kept her balance in the insanely high heels, Beckham, 39, looked fashionable wearing a head-to-toe black outfit.

The former Spice Girl lifted her hands in a typing motion on the "desk" portion of the treadmill-desk as she thanked Conde Nast College head Susie Forbes for allowing her to test it out.

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The mother of four was at the school on Wednesday to speak to design students and tweeted about her "inspiring afternoon." Just last month, the power player visited Parsons School of Design in NYC and told the crowd that the next step in her design career was to start a shoe line. "If anybody here is a shoe designer, please do come and see me!" she told Parsons students, as reported by the New York Post.

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Indeed, Beckham loves her stilettos! Back in 2008, Beckham gave an interview to Elle magazine, who witnessed the designer deliberating over which pair to pick from her extensive collection. "I don't want anything middle-of-the-road," she told the mag as she chose a pair of crazy heels.

"What d'you think, Romeo?" she asked her son, now 11. "Mummy, those shoes are crazy," he said.


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