the lion, the witch and the wardrobe

[beetlebum]

in the most recent adaptation of the chronicles of narnia: the lion, the witch and the wardrobe there is a lovely song playing when the children board the train and head out to the country. a woman sings in it but infrequently and i think the word she repeats is 'somewhere'. does anyone know what it's called and who sings it? can't find it anywhere on itunes!

[beetlebum]

any help?