A/N: I got the idea while writing Supernatural "Skin: Day 4", and I couldn't let it go (pun not intended, I swear) so this is the result. It includes my OC from that story, Gwenith "Gwen" Price. Hope you like it. What's parenthesised is the narration and the dialogue, the rest is Gwen singing (until Sam joins in at the end). Hope you like it!

Let it Go.

The street lights shine so bright tonight,

Which is why we're in an alley.

(DEAN: What the—)

Dean's so bloody frustrated,

'Cos the shifter took his car.

(DEAN: Of course I am!

SAM: (to Gwen) What are you doing?

DEAN: She's singing, Sammy. Isn't it obvious?)

(Sam gives Dean one of his famous bitch-faces, distracting Gwen, but she manages to keep singing.)

Dean's complaining is annoying Sam and I.

He doesn't keep it in, doesn't even try.

He doesn't care, he doesn't see,

His complaining is hurting our brains.

Conceal, don't feel,

Don't let us know.

We don't wanna know.

(DEAN: I was just—)

Let it go! Let it go!

He took your car, let it go!

Let it go! Let it go!

You've complained enough tonight.

We don't care about your stolen car!

(Dean takes that as an offence. "Hey! Watch it, it's my Baby you're talking about!")

You will get her back,

It's not like you'll never see her again.

(Sam and Dean groan when she starts humming the tone, before singing again.)

It's funny how some time apart

Can make you fuss so much.

And how you'd rather complain

Instead of getting to her.

It's time to run, you know it is

To get to your car quick enough.

Although we know it's just a car,

You don't!

Let it go! Let it go!

We know you want to get to her.

Let it go! Let it go!

Run back to your Baby!

If here you stand, and here you stay

Can you not complain?

(DEAN: I'm not the one complaining anymore.

GWEN: Oh, shush.

SAM: Hey, you're not singing anymore.

GWEN: Instrumental break.)

(As if to prove her point, Gwen starts humming again.)

I suggest you run back without being seen,

You know as well as I do, the cops are looking for you.

And one call is enough to lead them our way

If you want to go back, you better hurry up!

(DEAN: (mutters) Well, it's kinda hard if you keep singing.)

Let it go! (Dean gives Sam an irritated look when he joins in, obviously amused at his brother's irritation.) Let it go!

Or we'll stay here till the break of dawn!

Let it go! Let it go!

We know your car is gone.

Here we stand, under the street lights,

And we won't move on,

Unless you stop complaining.

(They both stop singing, and Gwen grins at Dean, who's even more irritated than before. That makes her burst out laughing.)

(GWEN: Let it go, mate. Let it go.)