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. The remix of his vocal trance production “Big Sky” by Agnelli & Nelson was voted “Tune of The Year” by listeners of Armin van Buuren’s A State of Trance radio show in 2007.
In addition to numerous single releases, he has released a live album (Discover “Live As” Volume 2) and two artist albums, Something To Live For and Never Fade Away. His new single Never Fade Away(Andy Duguid Mix) is featured on Armin Van Buuren’s A State Of Trance 2009. Download the single here.