I've discovered some really cool covers in the past few weeks. So, I thought I'd share:
Dala - Ohio (originally by Neil Young)
Jill Sobule - Hot in Here (Nelly)
Jack Johnson - We are Going to be Friends (The White Stripes)
Daniel Merriweather - You Don't Know What Love is You Do as You're Told (The White Stripes) -- incidentally, this is one of my favorite White Stripes tunes.
Lavender Diamond - Chiquitita (ABBA): there is a youtube video, but it's poor quality. So here's a link to another blog that allows audio embedding.
The Bird & The Bee - How Deep is Your Love (The Bee Gees)