Doubletakes were a lunch feature at the Humboldt Restaurant in Denver Monday afternoon when patrons found themselves sharing the restaurant with Bono and Bill Clinton. The former President and U2's front man discovered they would be in the Mile high City and arranged to meet for lunch. Bono ordered Ahi Tuna, while Clinton opted to stick to his vegan regimen, ordering a kale and quinoa platter. Chelsea Clinton and her father arrived first and were seated in the back of the dining room. Bono joined them shortly after they were seated. The casually dressed trio discussed '...family, friends and philanthropy', according to a representative of the Clinton Foundation.