Oh, she was never in the same class as Dusty Springfield, in terms of vocals. However, I believe Ms Black would bracket herself with her much more talented contemporaries. I'd say she is more famous as TV presenter and (very) light entertainer than a singer.
And I heard on 'The Wright Stuff' this morning that she's coming back with 'Blind Date'
A small part of me died when I heard that but at least there'll be no obligation to watch (and I wouldn't!