Possessing a voice that could make the most mundane lyrics sound like they came down from the heavens, Chinese singer-songwriter Grady Guan has spent the last decade-plus wowing audiences on the international stage. His career started in 2005 with an appearance on the TV show The Voice of China, and three short years later he was performing material he co-wrote at the closing ceremony of the Beijing Olympics. We've hand-picked these tracks to best showcase his breathtaking voice.