Alt-J (sometimes stylised ∆) was formed when Gwil Sainsbury (guitar, bass), Joe Newman (guitar, vocals), Gus Unger-Hamilton (keyboards), and Thom Sonny Green (drums) met at the University of Leeds, Leeds, UK in 2007. The band currently resides in Cambridge.
These are photos from concerts where alt-J played, so they may be of other bands that played the concert as well.
Bestival 2012 Sep 6 - 9, 2012 Downend, Isle of Wight, UK Uploaded by A Badger Faced Man
End of the Road Festival 2012 Aug 31 - Sep 2, 2012 Tollard Royal, Salisbury, Wiltshire, England, UK Uploaded by Maf Daniel
Pukkelpop 2012 Aug 16 - 18, 2012 Hasselt, Flanders, Belgium Uploaded by Mark Ketelaars
Latitude Festival 2012 Jul 12 - 15, 2012 Southwold, England, United Kingdom Uploaded by Skdotcom
T In The Park 2012 Jul 6 - 8, 2012 Kinross, Scotland, United Kingdom Uploaded by Neil Macdonald