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The Jonas Brothers sit down with ET and dished about their upcoming flick, great Grammy moments and going shirtless.

Check out what Nick, Joe and Kevin had to say:

On the filming the shirtless scenes in 3D Concert Experience: “Performing on stage will get you working out enough. It was funny because they told us that they were going to film everything - backstage, our quick change room and we forgot. We ran down there and there were cameras in our dressing room and you see us kind of freak out like - ‘Woah!’”

On the private screening in Texas: “We drove and surprised some fans who were watching the private screening. We just showed up and we kind of watched it with them. It was really cool to see their reactions — when they laughed and what was funny. We wanna do that more often, so we might pop in on another screening.”

On Taylor Swift and Miley Cyrus’s Grammy performance: “It was great. Her [Taylor] performance with Miley was such a classic Grammy moment, them singing together for the first time. It sounded awesome. We think is was great that it showed both of their vocal abilities.”

On their favorite things from Grammy week: “Performing with Stevie [Wonder] was the highlight of the century. It was amazing. Meeting some amazing people — Chris Martin and all of Coldplay.”