Here's Jade's absolutlest, mostest favorite song (at least for the moment)...
"Mercy" by Duffy.
Jade was singing one day, and the lyrics went "I was begging you for mercy, mercy... why won't you release me." Me and Kuki were intrigued, since we haven't heard a song like that before. Jade said she heard it playing on her school bus' radio.
A quick Google of the lyrics later, I found the song, downloaded it, and now Jade listens to it on her iPod shuffle repeatedly. What can I say? The kid has good taste in music. :)