There are multiple bands called La Roux/Laroux:
These are videos from concerts where La Roux played, so they may be of other bands that played the concert as well.
New Order / La Roux Jul 11, 2014 San Francisco, California, United States Added by Concert Archives 3
Glastonbury Festival 2010 Jun 23 - 27, 2010 Shepton Mallet, England, United Kingdom Added by Maf Daniel
Coachella 2010 Apr 16 - 18, 2010 Indio, California, United States Added by Concert Archives
Bestival 2009 Sep 11 - 13, 2009 Isle of Wight, England Added by Maf Daniel