1) John O'Callaghan is an Irish DJ, mainly producing electronic music. He also produces music under the alias of Joint Operations Centre, Mannix and Stenna. He has also collaborated with fellow Discover artists such as Bryan Kearney, Neal Scarborough (as Inertia), Thomas Bronzwaer (as Lost World) and Greg Downey. His best known track is Big Sky, done with vocalist Audrey Gallagher, formerly of the 90's alt-rock band Scheer.
These are photos from concerts where John O'Callaghan played, so they may be of other bands that played the concert as well.
Dreamstate San Francisco 2026 Mar 6 - 7, 2026 San Francisco, California, United States Uploaded by Steve Bryant
A State of Trance Jul 13, 2025 London, England, United Kingdom Uploaded by Tristanjt
Festival X - Melbourne 2022 Nov 26, 2022 Melbourne, Victoria, Australia Uploaded by deathcoretechnowhore
Beyond Wonderland Southern California 2022 Mar 25 - 26, 2022 San Bernardino, California, United States Uploaded by Raquel Moritz
A State of Trance Festival - Utrecht 2020 Feb 15, 2020 Utrecht, Utrecht, Netherlands Uploaded by Ralph te Mebel
Armin van Buuren / Gareth Emery / John O'Callaghan Feb 17, 2018 Utrecht, Utrecht, Netherlands Uploaded by Ralph te Mebel
EDC NY 2016 May 14 - 15, 2016 New York, New York, United States Uploaded by LawrencePeryer
Future Music Festival 2012 Mar 10, 2012 Sydney, New South Wales, Australia Uploaded by Sacstracks
Future Music Festival 2012 Mar 3, 2012 Brisbane, Queensland, Australia Uploaded by Aphex Bob
Marcel Woods / John O'Callaghan / Andy Moor / Wippenberg Oct 3, 2010 Sydney, New South Wales, Australia Uploaded by Sacstracks
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