"This Christmas, say everything..."

Here's the sitch:
It was a jewelry commercial with a man and woman lying in bed, the man puts some jewelry on his sleeping wife and she wakes up.
The slogan was "This Christmas, say everything without saying a word." Then a song started playing in the background and it sounded like CatPower or some other female artist. Her voice sounded familiar, but I didn't recognize the song and couldn't place the voice.
Help me! The song sounded like a good one!

Adtunes Search suggests:

http://adtunes.com/forums/index.php?showto...18&hl=cat+power

"How Can I Tell You" by Cat Power