■fs./'r ..BACKSTAGE MOM — At one of her usual chores of ironing for her singing sons, Mrs. George Osmond, backstage at the Garden State Arts Center, listens to some practicing by, left to right in background, Merrill, Alan and Wayne, while Jay holds Jimmy, the youngest of the singing group, in his lap. Marie, the only sister, who sometimes is included In the Osmond singing routines, gets some pointers from Donny at the efectric organ. (Register Staff Photos)