they've been using this song in a Volkswagen ad here in Australia and three nights running I said to myself I must find out who that lady is. It's Little Waltz by Basia Bulat, Canadian singer songwriter. Here's a live performance of it.



First few lines of Lyrics for Little Waltz
© Basia Bulat
"You and I, we make a grand salute
stare at each other like lost little birds across the room
and I remember the way you looked
I learned how to dance, but I’d never shown it to you
My love, I know I was wrong,
but you know that you’ll always be
my love..."

her website