Nick ruminates on the meaning of the word "wheels."

Amber's never hit the open road, but she can imagine the car ride is bumpy.

Jes flashes a sly smile, perhaps because she's hoping to road trip with someone special.

Excuse me. Could you listen to how inspired Jackie is?

Say what you will about Nick's attitude, but he has improved. He's writing things down!

Are you there song? It's me, Brian.

To properly channel the road trip vibe, Johnny took it outside.

Melissa pencils out her hook (with proper spelling).

Sitting pretty? Or just thinking about the open road?

Jes tickles the ivories -- before taking them in the car.

"Can I hear myself now?"

"What up? I just wrote a hook."

The songwriters await their turn to let it rip.

Melissa dazzles the judges with her vivid imagery.

After he killed the Hook Challenge, Johnny treats his co-writers to his jam.

And they try to elevate the gem.

Despite their beef, Jackie and Nick seem to be in-tune during the songwriting process.

Scotty gets his honky-tonk on.

Natasha Bedingfield is ready to hear what the contestants did with the blank pages before them.

"Country Club" Karen cuts loose.

Give us more of that rockin' riff Nick.

Melissa jams out in her signature zen-ish way.

The ladies make a "Home" for their performance.

Is Scotty Granger playing a soda can? If so, he's doing a phenomenal job.

What up tire, these boys don't care what dirt you're talking.

Jewel and Kara are looking rather pleased with the gents' tune.

Congrats "Going To Where I Need To Be" boys. You wrote a hit.

Even after a rough judges' table, the ladies stand united.