India, Jan. 30 -- Arainbow, sky full of fluffy clouds and the best weather made Shawn Mendes feel "like a lucky boy". The singer began his year by travelling to Peru in South America, where he visited the historic site of Machu Picchu. He took to Instagram to post snippets of his trip to the Incan citadel set high, at 7,710 feet, in the Andes Mountains....