(Coney Island’s Seaside Summer Concert Series 2012 Full Schedule. [/coney-island-concert-series-marty-markowitz-2012-schedule/]) So much for our earlier scoop! Just hours after Sheepshead Bites announced that Joan Jett would be the unnamed star of Marty Markowitz’s Seaside Summer Concert Series’ 2011 first show [/seaside-summer-concert-series-schedule-2011-sneak-peak/], the entire schedule hit the web. So