Answer:
My first is second in line; I send shivers up your spine; not quite shining bright I glitter in the light.
What force and strength cannot get through I with my unique teeth can do.
They took me from my mother's side where I was bravely bred and when to age I did become they did cut off my head. They gave to me some diet drink that often made me mad but it made peace between two kings and made two lovers glad.
I make a loud sound when I'm changing. When I do change I get bigger but weigh less. What am I?
I am an insect half of my name is another insect. I am similar to the name of a famous band.
No matter how little or how much you use me, you change me every month.