 Rúni first graduated as a documentary photographer in Copenhagen, and worked as a documentary photographer for eight years, before he trained to become a singer.He studied at the Sibelius-Akatemia in Helsinki from 1997 to 1999 and at "Internationales Opernstudio IOS" in Zurich from 1999 to 2000.Brattaberg is married to German opera singer Susanne Brattaberg-Jacoby.