(singing in operatic voice)

(upbeat music)

- [Denim] Wow, look, it's like the real thing!

Well, I'm a classically trained opera singer,

so I do sing every day.

- I don't do a ton of that stuff 'cause I don't think

Jimmy necessarily does a lot of vocal warm ups.

So I think that any kind of roughness or hoarseness is

probably pretty true to his life in the given circumstances.

- And if I'm on set, then I'll do

curls, push-ups, sit-ups, and crunches.

- I wish I did push-ups, that would be a good ritual.

I like to eat a lot--

and drink a lot of coffee.

(bell) Third round.

(bell continues to ring 9 times as cast talks in background)

(gasp) - [Denim] Yeah.

So first of all, catering on Yellowstone is phenomenal.

- It's incredible!

- Yeah, we have about four or five meals a day.

- You know, there will be, like,

desserts and ice cream and everything.

- If you're bored, you'll put on weight

'cause you'll just end up meandering towards the food

like livestock.

- Because I take care of my health,

I have a very specific diet.

I'm not saying that they don't,

they do take care of their health.

- Denim, all he eats is seaweed chips.

It's ridiculous, I don't know how he doesn't whither away.

- Denim is the healthiest eater I've ever met in my life,

and I always eat with Denim,

so I feel like I usually eat two meals.

- And then he'll see me and I have, lettuce, and fish--

he's like, yeah, no, what I meant to say was like,

stupid ice cream, and sugar stuff,

I want to get that!

- I'm like, guess I'll have some fish and like,

two leaves, please.

- And then, when I'm not there, he's like,

I think I forgot a fork.

- And then I'll just eat everything else.

(bell)

- Now I'm hungry.

(upbeat music)

- The highest maintenance?

- [Interviewer] Yep.

- Denim, 100%.

- I think that I am probably the highest maintenance person.

- It's me.

I'm the high maintenance one.

- He's the highest maintenance person we--

No, absolutely not.

- He doesn't require anything.

- I've got to have a team of experts

reassemble my hair line every shooting day.

- He's on the cusp of growing facial hair, any year now.

And he's got perfect skin, 'cause he's 17.

- Who'd you say is - I'm coming for you.

- high maintenance, did you say yourself?

- [Denim] Yeah.

- I said myself too - [Denim] I know.

- That shows how good we are. - [Denim] And I said--

I said that you were wrong.

- It's not fair to accuse either of those guys

of being high maintenance, and they're not, you know?

They're both rough and tumble real cowboys, you know?

A couple of hard guys from the country.

- Is that Paw Paw Cream?

(upbeat music)

- [Ian] Are you guys filming this?

- [Cameraman] No, (laughter) definitely not.