Anyone know who's crooning "daaa" at 4:04 in the song Look Up on When It Falls album? Sounds like Sophie maybe, but I just don't know. TIA

That would be Yvonne John Lewis.

There is a pretty good Live version of Give It Away where she sings a vocal intro bit. Shame they didn't do a studio version of that.

Anyway, more info on her here: http://www.artistdirect.com/nad/music/artist/card/0,,1039149,00.html

Quite interestingly she does backing vocals on the doctor who theme.... if you like that sort of thing