The annual Seaside and MLK Concerts are back, check out this year’s lineups below. Joan Jett and The Blackhearts at Virgin Free Fest (09/25/10) Photo: Jon Klemm (more) 2012 SEASIDE SUMMER CONCERT SERIES 07/12 A Tribute To Donna Summer: Gloria Gaynor, The Village People, The Trammps, Rose Royce 07/20 Friday Night Show: Squeeze, The Romantics…