Michael J. Fox showed up on The Late Show with David Letterman last night to officially announce the Nike Air Mag (aka the Back to the Future shoes). It's Marty McFly himself, ladies and gentlemen!

It's heartbreaking to see the effect Parkinson's has on his body—especially since he's one of my all time boyhood idols—but it's the truth, Parkinson's disease is not a walk in the park. If you want to help contribute to the research of curing Parkinson's Disease, the Nike Air Mags are being auctioned via eBay right now. Some pairs went for as high as $75,000—so it's obviously not for everyone—but all the proceeds are going to the Michael J. Fox Foundation for Parkinson's Research. If you have the money, it's a really great cause. You already know it's a really great shoe. [Nikemag.eBay.com]


You can keep up with Casey Chan, the author of this post, on Twitter or Facebook.