What the voice of the people Lo-Fi forgot to mention, of course, are the allegations made in several tabloid newspapers in the summer of 2001, that Cathy not only wrote S Club 7's biggest hits, but also sang the girls' parts.
On both her and Simon Fuller's part, the allegations have been denied vehemently. Perhaps we will never know the truth. That said, with Pro Tools, who needs session singers? They can make Geri Haliwell sound vaguely human...there's hope for any of us.