Ciara Mary-Alice Thompson (born 23 February 1996), known professionally as CMAT (, SEE-mat), is an Irish singer, songwriter, and musician. Her debut studio album, If My Wife New I'd Be Dead, was released in February 2022 and entered the Irish Albums Chart at number one. The Guardian wrote of her music, "Her songs are mournful yet accessible, emotionally literate and cleverly crafted, but, crucially, with a huge sense of humour..." Her second studio album, Crazymad, for Me was released in October 2023.