Blue Lamp Live Footage and Rock-A-Little Demo??

[Netter75]

I stumbled upon this video on youtube containing some footage of Stevie Nicks under a demo for Blue Lamp (one of my favorites). To my surprise the demo wasn't any of the ones I had heard from the Bella Donna sessions, her voice sounds much closer to how it sounded on Rock a Little. Does anyone know if she really demoed the song for the album and why? or was she just fooling around in the studio?

https://www.youtube.com/watch?v=bByNbqOPacY

Also in the video (roughly at 1:12) there is some footage from of concert of hers. Unless I'm mistaken (It could be from the Wild Heart tour?) it looks to be from the Bella Donna video as she's wearing the same shirt she wore for that performance of Sara. Does this mean that the live footage for Blue Lamp (and maybe Think About It) DO exist from that tour in some form?

And if so HOW DO I GET A HOLD OF THAT FOOTAGE?!