Kevin Sr. talks about his sons' success.

6 of 7
Sudden success goes to some young stars' heads, but the Jonas Brothers credit their family for keeping them humble. Kevin says his parents always taught him to "live like you're at the bottom, even if you're at the top."

"Of course people say, 'Oh, so you think you're at the top?' No, not at all. There's so much more we haven't accomplished," Kevin says. "The fact that we have these opportunities is such an honor and a blessing, and we wouldn't change it for the world. We just have to know that every day is special."

Their father, Kevin Sr., says his sons' faith also helps them keep their priorities straight. "We're not raising boys. We're raising men and fathers and husbands," he says. "It's very important to us that they can live their dreams, but the first priority is that they're good people."

Over the years, this band of brothers has learned to lean on each another when times get tough. "It really is cool that we have each other to be there for. When I'm on the road, Joe and I share a room, so we have the late-night conversations as we're laying in our beds thinking, 'It's amazing all these opportunities that we have,'" Nick says. "It's just this dynamic, and family is really what it comes down to."