There's no detail on the website at the moment, but The Green Apple Festival, a 3-city 200-artist music and arts festival schedule for Earth Day weekend (April 20-22, 2007) will include a free concert featuring The Laurie Berkner Band and Brady Rymer and the Little Band That Could. Rymer will open up the Sunday, April 22nd show in New York City's Central Park at noon, with Laurie headlining at 1 PM. Should be pretty cool...
No word on who's scheduled to shout "The Sounds of Silence!....." into the deep Manhattan night.
Shows are also scheduled for Chicago and San Francisco -- I can think of a few bands in both places that might be a good Earth Day backing band...