Lykke Li - Knocked Up video via YouTube
The audio isn't the same as what I just heard, because the set at Waterloo was much more stripped down and acoustic. I expect you'll be able to see the performance I just saw in the near future though. Waterloo has their own YouTube channel that they post their in-stores on.
In fact here's two shows from this week:
...And You Will Know Us By The Trail of Dead - Fields of Coal video via YouTube
Andrew Bird - Natural Disaster video via YouTube
Lykke Li - I'm Good, I'm Gone live at Waterloo Records video via YouTube
My friend Tessa, who was also at this show, thought Lykke Li looked like an Olsen Twin (hehe)