The Knife are now a trio? anybody knows who the third member is?

I think it may be that Funchess lass. I don't think she's really considered a "member", more of a guest vocalist if I'm not mistaken.

the knife are a brother/sister duo and karin the sister is the sole vocalist but in a song they feature funchess

Not very keen on this. Hope the rest of the album is better, as I've got tickets to see them!