NEW ROCHELLE, NY — Come see the fifth-graders in the George M. Davis Jr. Elementary School choral group perform at Lord & Taylor in Eastchester at 1 p.m. Saturday. They will sing “Together We Can Change the World” (their class theme) and other songs in a fund-raiser the department store is hosting for the Friends & Family Muscular Dystrophy Association Event. The store is located at 750 White Plains Road (Route 22).