Music: Tegan and Jack?

I read on Jeffery Simpson's blog that the White Stripes have put out a cover of Tegan and Sara's, "Walking with the Ghost." When this album came out I was totally digging it! It's a complete 180 degrees from what I usually listen to, but there's something about those twins that just sucks you in and gets you wound up. This song, in particular, was one of my favourites. I haven't heard the single, but as Jeff (does he prefer Jeffery?) stated, it's being played on the radio in Vancouver, so some of you must have heard it. Let me know what you think. I'm almost tempted to open an iTunes account just so I can get this song!