While we’re all still waiting patiently for our hoverboards, (just four more years, PopWatchers!) Michael J. Fox brought the next best thing to his visit to The Late Show with David Letterman on Thursday night: The new Nike MAGs, a line of Back to the Future Part II-inspired shoes. Fox showed off the kicks, which are almost an exact replica of the ones worn by Marty McFly himself in the 1989 movie. (Sadly there’s no power laces, but they do light up.) The actor explained that the limited edition shoes (there’s only 1,500 of them) will be auctioned off on Nike’s eBay site and that the proceeds will go to his Parkinson’s research foundation. As Fox put it, the coveted shoes will go to three groups of “people with major joneses”: Sneakerheads, Back to the Future fanatics (who Fox joked are, “Out of their minds… in a good way”), and the Parkinson’s community that want to help advance research. Better yet, Fox revealed that Google co-founder Sergey Brin will match up to $50 million. Watch the moment below:

In addition to showing off the shoes, Fox had a candid and funny chat (the guy is an ace interview) with Letterman about Charlie Sheen. Fox recalled when Sheen took over for him on Spin City, which he produced. “It was actually good, because he worked and I got paid,” he joked. Still, as Sheen is gearing up to get roasted by some of his friends and colleagues, Fox had nothing but nice things to say about the troubled star. “He says he’s doing okay, so who’s it for me to say he’s not?… I have no judgment about it.”

Fox joked that Sheen’s behavior was no worse than his Back to the Future co-star Crispin Glover’s infamous moment in which he almost kicked Letterman in the face — Fox referred to him as “excitable” rather than, say, loony — and that all people in show business are a little bit crazy at the core. As Fox succinctly put it, “We’re all here, because we’re not all there.” Watch:

Are you going to bid on Nike’s Back to the Future shoes, PopWatchers?

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