Colm Ó Cíosóig (Irish pronunciation: [ˈkɔlˠəmˠ oː ˈciːsˠoːɟ]; born 31 October 1964) is an Irish musician who achieved international fame as the drummer for the alternative rock band My Bloody Valentine. Their albums Isn't Anything (1988) and Loveless (1991) established Ó Cíosóig as a pioneering figure in the shoegaze genre.