This free concert featuring Neon Trees provides the perfect reason to get outside, get together, and hang out with some new friends. The whole concert is free and there is also a Kid Zone with activities just for the little ones. We'll make a raft of blankets, so come and go as you please, but check out the website first for regulations on what you can and cannot bring with you: http://www.celebrateboston.com/earthfest.htm