Michael J. Fox's 'Back to the Future' Nike Mag Shoes Sell For $37,500 [VIDEO]

Giving New Meaning to the Nike Swoosh

Hoverboard Not Included With Nike Mags

Marty McFly has come and gone in his Delorean, and he left behind some really awesome sneakers. Michael J. Fox himself announced the debut of the Nike Mag, the futuristic shoe he wore in Back to the Future II, which will feature a limited release of just 1,500 pairs. And you'd better expect to pay a pretty penny if you want 'em: the first pair just sold at auction for $37,500.

Fox, who, of course, played the plucky McFly in the second part of the Back to the Future trilogy (you know, the one set in the distant future of 2015), showed off the new protoype on Late Night with David Letterman on Thursday, eliciting oohs and ahs from fans of the classic '80s fantasy films.

And the new high tops look exactly like the ones from the film: astronaut-style straps, bright LED lights and a glowing Nike logo.

But the best part of the sale? All proceeds on Ebay will go to the Michael J. Fox Foundation for Parkinson's Research, whose namesake is not only the founder but is also stricken with the disease.

In Los Angeles last night a 22 year-old British rapper named Tinie Tempah ("Written in the Stars") bought the very first pair of Nike Mags for $37,500. Hosted by Joel McHale (who promised the winner a free puppy with his purchase), the auction also dished out a plutonium case in which the shoe fanatic could store his new collector's item.

The sale ranks among the most expensive sneakers ever sold. Other notable examples include a very rare Air Force One shoe from Nike (only 40 were ever produced) that will reportedly cost you upwards of $1,500, or the pair of diamond-encrusted Nike So Cal Air Force 1 Supreme Max runners bought by Outkast's Big Boi for $50,000.

For shoes you probably wouldn't want to wear, there are the ones Wilt Chamberlain sported when he set the NBA's single-game scoring record and which Sotheby's sold in 2000 for $55,000.

So while the new Nike Mags have brought sneaker and Back to the Future  fans together in excitement, I'm just waiting for that OTHER movie invention they promised us in 2015: the hoverboards.

Watch the commercial for the new kicks AND the clip from David Letterman below.