More than two dozen of Long Island’s top folk and rock musicians will take to the stage in Eisenhower Park in East Meadow to perform the music of Harry Chapin, the late singer, Grammy Award-winning songwriter and social activist. The rescheduled “Just Wild About Harry” tribute concert on Monday night, July 26, will feature multiple acts, including concert organizer Stuart Markus and his trio Gathering Time, performing some of Chapin’s classics including “Taxi” and “Cat’s in the Cradle,” plus many lesser hits and fan favorites like “WOLD” and “Mr. Tanner.” The concert, set for 8:00 p.m., is free, but concertgoers are asked to bring donations of nonperishable food to support Long Island Cares, Inc., the regional food bank founded by Chapin in 1980.