The spot, called "power to your feet", was created by Wieden & Kennedy Amsterdam to promote Nike Free, running shoes that the company promises will let the wearer's feet move as if they were not wearing shoes at all.
Radcliffe and Federer appear in the spot along with the tennis player Maria Sharapova, footballers including Ruud van Nistelrooy, Wayne Rooney and Cristiano Ronaldo, and the Moroccan long-distance runner Hicham El Guerrouj.
The spot is set to the tune 'Tiptoe through the Tulips' by the late Tiny Tim, as remixed by Mark @ Tuna Music.
It was created by art director Alvaro Sotomayer and copywriter Carlo Cavallone, and directed by Stylewar through Mungo Maglagan.
"The Nike Free spot is a simple celebration of feet -- bare feet, powerful feet, gracious feet, curious feet. The Free shoe is a pretty revolutionary product. We wanted the ad to reflect its simplicity and natural design with a similarly uncontrived approach, look and feel," Cavallone said.
The campaign runs throughout Europe, the Middle East and Africa, from today, April 20.
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