Here's an update on a story we shared back in October.

Congratulations to the St. Philips Academy students for being new world record holders!

A staggering 300,265 jumpers participated in the "Let's Jump" event, breaking the old record of 20,000 by a huge margin! The challenge was kicked off by the first lady and “jumper in chief” Michelle Obama on the white house lawn along with 464 Washington-area children on Oct. 11 at 3 p.m. At the same time, thousands of people throughout the world participated in the event to help break the record.

Michelle Obama recorded a video address to announce the accomplishment, which you can watch below. I've also excerpted some highlights.

"I want to say thanks to every single young person who showed that exercise isn't just good for you, but that it's fun, too!"... "But this isn't just only about one day in October, it's not just about jumping jacks or even a world record. We've got an even bigger goal to go after: ending childhood obesity in a generation so that all our kids will grow up healthy and strong...If we all work together we can build a healthier tomorrow for our kids and for our country."

Check out the National Geographic Kids Let's Jump Blog and Photo Gallery for more coverage of this historic event!