This song...

[blue_eyed_1987]

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It's called Avalon by Prof. Green ft. Sierra Kusterbeck and as far as I'm concerned is about Arthur and Merlin (and their epicness).

Look at the lyrics:
Its time to even it up, I guess a round table weren't equal enough
You can't contain me with chains I'm free and I run free
Any enemy is coming with me when im done
Whatever's asked to me I perform,
I rip through the rain into the eye of the storm,
Still carrying the flame, eye of the torch,
Failure comes at a price I can't afford,
Never been half hearted I put my all in,

and

We'll be kings forever, oh oh oh,
Holding on together, oh oh oh,
Feeling so much better oh oh oh,
When everything was wrong and everything was gone
We ran to Avalon.

I want to read some kind of epic reincarnation fic now...