Kacey Musgraves is arguably hotter than ever, but her momentum stalled a little over the weekend. The singer announced the cancellation of three of the shows on her “Middle of Nowhere Tour,” with no explanation. The dates affected are August 20 (Chicago), August 29 (Boston) and September 2 (Brooklyn). While no official reason was given, industry sources told “TMZ” that the three canceled dates were extra shows added after the initial itinerary was finalized. The decision was reportedly made to strip those additional dates away and revert to the original plan, moving the tour opener to August 21 (which happens to be Kacey’s birthday).