Joint Operations Centre

John O'Callaghan (born 1981) 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. He has collaborated with fellow Discover artists such as Bryan Kearney, Neal Scarborough (as Inertia), Thomas Bronzwaer (as Lost World), 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" (feat. Sarah Howells). 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.

Subculture 2024 - 2025-01-03T00:00:00.000000Z

FSOE 867 - Future Sound Of Egypt Episode 867 - 2024-07-18T00:00:00.000000Z

ASOT 1181 - A State of Trance Episode 1181 [Including Live at Tomorrowland Belgium 2018 (Highlights)] - 2024-07-11T00:00:00.000000Z

Global DJ Broadcast Weekly Drive 26 - 2024-06-06T00:00:00.000000Z

FYH399 - Find Your Harmony Radio Episode #399 - 2024-04-19T00:00:00.000000Z

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