Keith Urban has developed a polyp on his vocal cords that will require surgery forcing him to cancel almost all of his public appearances and remaining concerts. One of the cancelled events is his annual All For The Hall benefit concert in Nashville. Urban is up for CMA Entertainer of the Year at Wednesday's CMA Awards in Nashville and will perform on the show as scheduled. The procedure is an outpatient procedure which will put him on total vocal rest until doctor's give him the green light to resume his schedule. We will keep you posted.