San Francisco is the focal point for several Television programmes, series, and of course songs.
This song - 'San Francisco (Be Sure To Wear Flowers In Your Hair)' - sung by Scott McKenzie, written by John Phillips - was a hit single in 1967.
Believed to have sold over 7 million copies worldwide, reaching Number 1 in the United Kingdom, and number 4 on the United States Billboard Hot 100.
There are believed to be a number of versions of this song, but this version - McKenzie's version - has been referred to as the 'unofficial anthem of the counterculture movement of the 1960s'.
The counterculture movement of the 1960's includes the anti-vietnam war and flower-power movements.