'Wear Flowers in Your Hair' defined hippie era
                                
                                
                                    (Newser) -
                                    Singer Scott McKenzie, best known for his song "San Francisco (Be Sure to Wear Flowers in Your Hair)," died Saturday at the age of 73, reports the  BBC . Released in 1967, "San Francisco" became one of the most iconic songs of the hippie era, helping define the...