John O'Callaghan
Irish disc jockey, musician and record producer · Ireland · On the map · Musicians · Born 1982 · age 44
John O'Callaghan, is an Irish musician and DJ, who mainly produces trance music. He also produces music under the aliases of Joint Operations Centre, Mannix, Henrik Zuberstein, and Stenna.
John O'Callaghan is read about 23 times a day, in 7 languages.
A typical day, 30 days to 9 October 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 120 days, one point a day.
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About this person
He has collaborated with fellow Discover artists such as Bryan Kearney, Neal Scarborough, Thomas Bronzwaer, and Greg Downey as well as, more recently, trance hero Leon Bolier. His best-known tracks are "Exactly" with Bryan Kearney, "Big Sky", in collaboration with vocalist Audrey Gallagher, and "Find Yourself". O’Callaghan has received remixes by trance artists such as The Thrillseekers, Sean Tyas, Gareth Emery, Cosmic Gate, Markus Schulz and Indecent Noise. He has also worked with Heatbeat and Aly & Fila.
