Earlier this month, Demi joined the Jonas Brothers onstage at their kickoff show for their Jonas20: Greetings From Your ...

Other mainstays of his routine include working out and staying active. Jonas says his longterm trainer, Matt Blank, has been ...

It's a warm summer night. You’ve managed to score a coveted ticket to the Jonas Brothers concert, where you’re singing at the top of your lungs about scorching temperatures, outselling Kelly Clarkson ...