Cormac O'Halloran, DJ Kormac, or Kormac, is a DJ, producer, and composer from Dublin. In the mid-2000s, Kormac was a turntablist and multi-instrumentalist in the Irish experimental band 8Ball. In 2007, Kormac released his first solo EP, Scratch Marchin'. Kormac has performed with a full ensemble of brass, strings, drums, electronics, bass, and guitar as Kormac’s Big Band. In 2014, Kormac's song "Wake Up" from the album Doorsteps was nominated for the Choice Music Prize of Irish Song of the Year.
Kormac has played festivals including Glastonbury, Bestival, Electric Picnic, Sonar and toured the UK, Europe, Eastern Europe, Australia and Canada alongside luminaries Portishead, Nas, Flaming Lips, Sonic Youth, Snarky Puppy and a host of others. Current streaming figures are estimated to be in excess of 30 million.
After nearly a decade-long hiatus, Kormac released Equivalent Exchange, featuring the Irish Chamber Orchestra, on 11 November 2022.