When does the Jonas Brothers Surprise Theater Invasion start?

I read on their myspace that they have a three day weekend so they are doing a surprise theater invasion during the week that “Jonas Brothers: The 3D Concert Experience” is playing, which is this week. What day, exactly, (if you know) does it start?

How Long Do the Jonas Brothers Come in The hannah Montana 3d concert movie for?

well..as You all know The concerts In 3d, and i really wanna buy it mostly because the jonas brothers are in it.So i was wondering if the Jonas Brothers Were In all of the concert or if they only sing like a few songs and then leave?