Before looking at the link, (and I haven't yet, so I don't know if the answer's in there)...

Does anyone know who was recruites at the spur-of-the-moment as a backup singer for the recording session of Your So Vain? Don't give it away for everyone. Answer in white in a couple of days.

[edit:] Yup! Answer's on the link...just so folks know.

The Only WO'N!