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.
Phoenix / alt-J / ††† (Crosses) / Joan Jett & The Blackhearts / Terraplane Sun Dec 5, 2013 Reno, Nevada, United States Uploaded by Anthony Mendoza
Buzz Beach Ball 2013 Sep 27, 2013 Kansas City, Missouri, United States Uploaded by Tom Kennedy
alt-J / Lord Huron Sep 17, 2013 Philadelphia, Pennsylvania, United States Uploaded by That Concert Chick Ashley
alt-J / Royal Canoe Sep 14, 2013 New York, New York, United States Uploaded by Andrew Harman
Bumbershoot Festival Sep 2, 2013 Seattle, Washington, United States Uploaded by Primus913
Osheaga Festival 2013 Aug 2 - 4, 2013 Montréal, Québec, Canada Uploaded by Roxanne Savard
Neil Young & Crazy Horse / alt-J / Phoenix / Sophie Hunger Jul 23, 2013 Nyon, Vaud, Switzerland Uploaded by Sefton Perry
Latitude Festival 2013 Jul 19 - 21, 2013 Southwold, England, United Kingdom Uploaded by Skdotcom