An Icelandic musician and former drummer of the band Sigur Rós, he joined the group in 1999 and contributed to several acclaimed albums, helping shape their ethereal sound. Before joining Sigur Rós, he was active in the Icelandic music scene, performing with various local bands. Known for his dynamic drumming style, he played a key role in the band's live performances. He departed from Sigur Rós in 2018 to address personal matters. Beyond music, he has a keen interest in visual arts.