Epic Saga time!

Okay, not an epic saga, but the longest song I've ever written. It's almost full length and revolves around a reference. I can't choose between The Rhythm of my Life, Beating, or Back of my Head as a a title though.
Also the first line is sung in the same way it is sung in Of The Night by Bastille.
I really like this, so it's copyrighted too. By me. Okay?

It is the rhythm of my life

But it isn't constant

No, no, no, no

No, no, no, no 

Sometimes it's crazier

Louder than ever

Sometimes it's slow

Soft and slow

Sometimes it's dark and dreary and dull and gloomy

And oh so melancholy

Sometimes it's bright and happy, all sunshine and smiley

But sometimes I feel so sorry

And there's a drum beat

In the background

It's no more than four

And when it's loud or crazy

Or soft or lazy

It's there

Beating, beating,beating

At the back of my head

Oh woah oh, oh woah oh oh oh oh

It's beating, beating, beating

At the back of my head

And it keeps me grounded

Keeps my strong

(At the back of my head)

It keeps me going

Walking and strong

(At the back of my head)

It brings me out of 

The darkness inside 

(At the back of my head)

It always asks me 

Why do you hide?

*epic Take Your Time Coming Home type guitar solo*

It is the rhythm of my life 

But no, it isn't constant

And it is the rhythm of my life

And it'll play wherever it goes.

Why has no one heard of the Mexican Mafia?

Because it's Nacho business

See you whenever.