Yeah. I haven't heard either of her most recent albums, Scarlet's Walk (2002) or The Beekeeper (2005), but Strange Little Girls (2001) was entirely composed of covers. (It's the one where each song and persona came accompanied by short texts by Neil Gaiman.) I like some of her versions; I don't know all their originals; some don't work for me no matter what. The single Strange Little Girl features two additional covers. If you would like, I can send you some of them.