The Songs in Chaindance (Common Bonds)

This is driving me nuts, but I can't find the songs Loni was dancing to in the bar.
The one, "I Am Invincible" is so cool, but I can't find it!
It's not even listed in the credits, all it says is "Music performed by John Mayall".

Can anyone help me?

-Amanda

"She will remember your heart when men are fairy tales in storybooks written by rabbits"