Animal Collective & Grace Potter park shows (on sale now)
Grace Poter in Prospect Park in 2009 (more by Chris La Putt)
Tickets also went on sale at noon for the show Cut Copy is playing in Prospect Park.
Tickets go on sale at noon for a show Grace Potter is playing in Central Park in September (Sat, 09/24/11, to be exact).
and speaking of Summerstage, they just announced their entire summer lineup (free shows included).