in my opinion any well known pstar from overseas that is visiting Atlanta has high chance of being fake.  no offense to your town but if they are coming from overseas why make the stop in Atlanta? as opposed to perhaps NYC or LA or other large city.  I usually need some sort of other independent confirmation like a twitter or even having their "website" that looks like a professional website not something that can be slapped together in a day.  A lot of times these websites with pictures you'll see pictures have only been posted in the last week.  I'll also check the area code.  If the area code is some random place like Colorado its most likely fake etc etc