Copacabana singer Barry Manilow, 82, reveals he is battling lung cancer and will undergo surgery.The 82-year-old Copacabana singer shared with his fans that he has a cancerous spot on his left lung that will be removed surgically soon but will not have chemo and radiation.The crooner said he happened to have an MRI after suffering from weeks of bronchitis and that is when the spot was discovered.