Linkin Park - Iridescent
Transformers: Dark of the Moon Soundtrack

You were standing in the wake of devastation
And you were waiting on the edge of the unknown
And with the cataclysm raining down
Insides crying "Save me now"
You were there, impossibly alone

Do you feel cold and lost in desperation?
You build up hope, but failure’s all you’ve known
Remember all the sadness and frustration
And let it go. Let it go

And in a burst of light that blinded every angel
As if the sky had blown the heavens into stars
You felt the gravity of tempered grace
Falling into empty space
No one there to catch you in their arms

Do you feel cold and lost in desperation?
You build up hope, but failure’s all you’ve known
Remember all the sadness and frustration
And let it go. Let it go

Do you feel cold and lost in desperation?
You build up hope, but failure’s all you’ve known
Remember all the sadness and frustration
And let it go. Let it go

Let it go
Let it go
Let it go
Let it go

Do you feel cold and lost in desperation?
You build up hope, but failure’s all you’ve known
Remember all the sadness and frustration
And let it go. Let it go

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Iridescence (also known as goniochromism) is generally known as the property of certain surfaces which appear to change color as the angle of view or the angle of illumination changes. Iridescence is commonly seen in items such as soap bubbles, butterfly wings, and sea shells.
It is an optical phenomenon of surfaces in which hue changes in correspondence with the angle from which a surface is viewed.

It is often caused by multiple reflections from two or more semi-transparent surfaces in which phase shift and interference of the reflections modulates the incidental light (by amplifying or attenuating some frequencies more than others). This process, termed thin-film interference, is the functional analog of selective wavelength attenuation as seen with the Fabry–Pérot interferometer.

Source: Iridescence (Wikipedia)