What better place to perform "Down" than in an elevated park New Yorkers visit to lift their spirits up? Pepsi Music asked Jay Sean to do a live acoustic rendition of his monster hit in the great Manhattan outdoors, and he was down with that. They say a real performer can deliver a song in any setting... which is not to say that New York's unique High Line Park is just any setting, being an urban playground that sits atop pillars in the sky. But watch how Sean both transcends and makes the most of this unusual video location:

Down: Pepsi Music On Location on Yahoo Music!

If you're inclined to worship the ground you just saw Jay Sean walk on, you can visit High Line Park, which has one of the more unusual backgrounds of any semi-green space in Manhattan. The elevated platform was constructed by the New York Central Railroad in the 1930s to keep the trains out of harm's (and horseless carriages') way. It was used for downtown rail purposes until 1980, and then the abandoned tracks fell into weed-wracked disrepair through the 1990s, even as adventurous New Yorkers snuck up onto the platform for illicit getaways and great views. The platform was slated for demolition when someone thought: Wouldn't that be an awesome place to have Jay Sean belt out his hit? Actually, it was urban renewal types who had the foresight to save it and turn it into a walkway that would just happen to be perfect for mobile Steadicam shots. The park opened just this year... but if you visit, watch out for ghost locomotives.

Speaking of unusual backgrounds, Jay Sean's is pretty out-of-the-ordinary, too, as R&B stars in America go. He's a Brit whose family is of Indian origin, and he already had two successful albums out in the UK before he ever got signed inthe U.S. Cash Money Records saw his potential to bring in lots of the moolah the label was named after, and his third album, All or Nothing, due out Nov. 23, will be his first CD to get a stateside release.

But even without a proper album out here yet, some are characterizing him as already the biggest British male urban artist ever to hit the American charts. As a digital download, "Down" has sold 1,763,125 million copies, as of this week (120,246 of those just in the last week). It remains at No. 1 on Billboard's Hot 100 Airplay chart. It just got knocked off the top of the overall Hot 100 by Britney Spear's "3."

Before the Brit was displaced by Britney, "Down" did some knocking off of its own. Jay Sean's was the tune that finally displaced the Black Eyed Peas from the No. 1 spot on the Hot 100, after that group's record 26-week reign. If for nothing else, we'd have to be grateful to him for that, right?

But there's more to be thankful for, because the guy can sing. Ain't no AutoTune on his Pepsi Music performance; our producers didn't even pitch-correct the slight sound of the fall breeze you can hear rustling through the mike. He's clearly a natural, and although we can think of many recent instances where a smash single hasn't translated to a smash album, it seems like "Down" is the kind of song—and Sean the kind of performer—who might even prompt music fans to want to spend more than a buck, come Thanksgiving time. He could be the cure for your seasonal affective disorder.

If you want to see what he looks like without that autumn jacket on (hint: they apparently have gyms in Great Britain, too), or what he sounds like when joined by Lil Wayne, you can always check out the slicker version of "Down," right here: