Did you see the Jonas Brothers on Good Morning America today? Our fave part was watching them do the weather -- hilarious!

But the boys don't just rock out (or take over Sam Champion's job). Most recently, they've taken on a new cause: spreading awareness about diabetes and offering encouragement to young people who have it by partnering with Bayer Diabetes Care. It's a cause that hits close to home: Nick has battled diabetes for the last two years. "[When I was diagnosed,] I thought, 'Why me?' I didn't know how to handle it," Nick tells People. "I didn't know anyone with diabetes. There was no familiar face in music or sports that I could connect with ... [but] I started to see it as an opportunity to be an inspiration to a generation that doesn't openly talk about having diabetes and not feeling embarrassed by the disease."

Nick was diagnosed with type 1 diabetes in late 2005 at the age of 13 after experiencing sudden weight loss and behavioral changes. Since then, he's learned to manage his diabetes. "At a concert a couple of days ago Nick had a low onstage," Kevin says. "He said, 'I need a second to stall,' so I kept talking [to the audience] until he gave us the sign that he was OK." But it all goes to show that diabetes doesn't have to be a show stopper, which is something Nick wants young people to know: "To be able to live my dream by being in a band shows that anything is possible, even if you have diabetes." How cute is that?!