I do think she had a strong backtrack on UNITE, because it sounds identical to AT06. From the moment she started singing on a-nation, I pictured her in a red wig and leather boots, because it does sound identical. Nothing wrong with that though ^__^ it does sound amazing.
BTW, if you wanna see some REALLY bored fans..
CDL05-06 - Evolution
Somewhere towards the ending, in the final chorus (at 05:25) the camera films the entire front row from left to right (from ayu's view) and there are 2 girls standing there looking like: "I've got so much make-up on, I'm not gonna spend trouble laughing and cracking the layer.. And I'll SO break a nail if I cheer along with ayu.."
Those two fans kinda ruin the end of the performance >__> Are they crazy? I'd go crazy like hell on evolution and scream WOW YEAH! as loud as I could XD and do the arm movements.