Rare Tracks
This page has some of her rarest songs as well as her songs performed at several shows. These are all in RealPlayer format. I got all of these from the Official Site.

All I Wanna Do - duet with Keizo Nakanishi
Genie in a Bottle - Live on TRL
Genie in a Bottle - UK Dance remix
Reflection - Live on CBS
So Emotional - Live on TRL