ROME (Reuters) - Whenever crooner Tony Bennett returns to the land of his roots, he feels overwhelmed. "When I sing in Rome or anywhere in Italy, I get a complex," he said after performing for a sold-out hall at Rome's Parco della Musica. "I know too much history, too much about the magnificence of Italy, the place where the orchestra was invented, the first piano, the first violin," he said, the feeling of awe mixed with pride clear in his voice. With an easy laugh, he said he has come across singing waiters in Italy that could give some professional singers a run for their money. ...