I don't think we have to worry about Letterman, I would assume that interview would already be scheduled if he were going to do it. Perhaps Jesse or Andrew is going to be on that show. They'll be splitting up some of the promo I would think.

With his music, I think Justin has more say in which shows he goes on for promo. With movies, it's up to the studio's PR people or producers I would assume and Justin probably just goes where he's told.