Jonas Brothers
Photo: Jeff Kravitz/ FilmMagic

The Jonas Brothers have promised that fans will get a very behind-the-scenes look at their lives when their movie, "Jonas Brothers: The 3D Concert Experience," hits theaters. And they weren't kidding.

The boys told MTV News at the film's premiere in Los Angeles that the cameras were around so much that there were several unexpected candid moments caught on film. What does this mean for you? Well, faithful Jonas Brothers fans, you will finally get a chance to catch the guys shirtless. Yes, you read that right.

"That's an interesting question," Joe remarked about whose idea it was to film the guys getting dressed backstage at one of their shows. "It was actually just everyone's collaboration. We wanted to film everything backstage, and that just happened to be our quick-change room and they caught us. It was really funny."

"The thing is, we were in the midst of the show, so we were just continuing like a show," Nick explained. "So when we went backstage, we didn't realize they were there and we were changing ... we went, 'Oh my gosh! Wow! We might want to get them out of here.' So it was in the moment."

Speaking of loyal fans who will be excited about the topless scenes, "We can only thank them," Joe said. "This [movie] is a thank-you to our fans." The boys will also be thanking their fans in person this weekend, when they make surprise visits to a few theaters showing the film.

Everyone knows that the Jonas Brothers have hysterical fans that will do just about anything to meet them, so we had to turn the tables and ask the guys: Is there anyone you are fanatical about? Nick very quickly answered, "Daniel Craig."