A LITTLE NIGHT MUSIC / SEND IN THE CLOWNS

Last week I went with a friend to see Sondheim's "A Little Nigh Music", a marvellous production at the Munier Chocolate Factory. Since then I have been trolling through Youtube to see what versions are available of "Send in the clowns". There are quite a lot ranging from the truly dreadful Barbara Streisland who over emotes as usual, through to some versions by totally unknowns like this one:

http://www.youtube.com/watch?v=8-VXXZLh2a0

What I find so interesting are Sondheim's own comments but also this young girl who would seem to be too young to interpret the part of an older, worldly actress, I think does an incredibly good job on the song. For one thing she doesn't overact and lets the song speak for itself which to my mind, is the way it should be. The friend who accompanied me is convinced that this young girl is a now well known actress but can't remember her name. Does anyone here know who she might be?