Another oldie:
San Francisco (Be Sure to Wear Flowers in Your Hair)
I assume the flowers helped the hippies smell better. But it is a very singable song, at any rate.
Scott McKenzie ~ San Francisco
http://www.youtube.com/watch?v=bch1_Ep5M1s
The Mama’s & Papa’s ~ San Francisco
http://www.youtube.com/watch?v=cvWjIgiUIw4