I need to answer some more questions about Tweeter and the concert that people of brought up in e-mail. One is for the lawn seat ticket holders. Do not bring camping chairs. The Tweeter site says camping chairs in bags not allowed. And they are still not allowed if they are not in the bag...waiting for the laughter to end...(yet a valid question). A low back chair is allowed (beach chair) that is no more than 9 inches off the ground.
Guests are also WELCOME to bring:
Small bags or backpacks
Small umbrellas, ponchos or rain coats
Snacks in (1) clear, plastic gallon sized bag (1) per person
(1) sealed bottle of water (1 liter or smaller)