There are multiple bands called La Roux/Laroux:
These are photos from concerts where La Roux played, so they may be of other bands that played the concert as well.
Parklife Festival 2009 Oct 3, 2009 Melbourne, Victoria, Australia Uploaded by Leon Sjogren
Bestival 2009 Sep 11 - 13, 2009 Isle of Wight, England Uploaded by Maf Daniel
Leeds Festival 2009 Aug 28 - 30, 2009 Wetherby, England, United Kingdom Uploaded by Sixstringsith
Reading Festival 2009 Aug 28 - 30, 2009 Reading, England, United Kingdom Uploaded by Roobyna
La Roux / Dan Black Jul 11, 2009 London, England, United Kingdom Uploaded by K8 Lnd
Lily Allen / La Roux Mar 26, 2009 London, England, United Kingdom Uploaded by K8 Lnd