I know there are loads of pubs around the arena, was hoping for something more U2 or Irish themed, but I dont think anybody has organized anything. If so I'm not aware of it. Legends Corner is always a good place, and its right across the street from the arena, but I'm sure it is going to be slammed. Might try something a little further down Broadway, crowds might not be as bad. Friday night we were planning on doing something in East Nashville.
If any locals know of any good Irish pubs, please let the rest of us know.