My guess is Feist will just be broadcast live from somewhere East Coast, but sounds like Stars and guest will be at the Rocky Mountaineer Train Station event hall to give a small show.
If you've got some time and can ignore the doubtless commercialism for a bit of a free show, then it might be worth checking out.
Free Tickets page (use code "GS4Van13" for general admission tickets):
Info on event on Samsung's FB page:
More info on venue:
Google Map of location (close to VCC skytrain):