It's actually Harriet "Wheeler." She's also married to the guitarist, David Gavurin. Unlike the Cranberries, the Sundays kept all of their music fairly mellow. And I definitely recommend Beth Orton also.
The first time I saw the Sundays play, in 1990, they only knew the songs on the first disc. And they played 'Can't be sure' a second time as an encore for lack of knowing any other songs. It was amazing.