There are, at least, two artists known as Fink: 1) A Brighton-based acoustic folk / blues / electronic artist. 2) A Hamburg, Germany alt-country band, founded mid-90s & disbanded in 2007.
These are photos from concerts where Fink played, so they may be of other bands that played the concert as well.
Barclaycard British Summer Time 2013 Jul 13, 2013 London, England, United Kingdom Uploaded by Thekilburnoracle