For more than 30 years, elementary school students from across the Clark County School District have taken part in the Orff Festival.

What is the Orff Festival you may ask?

Well, we dropped by Bozarth Elementary School for their last rehearsal before the big festival to find out.

♪♪ Warmups are underway inside Mr.

Owen's classroom.

[singing] As this group gets ready for a big district-wide performance... (Mack Miller) We are in a festival called the Orff Festival.

It's named after somebody named Carl Orff who created this music for elementary schools.

Carl Orff was a German composer, and Orff is also a method of teaching.

[singing] (David Owen) Orff Schulwerk is ultimately all about training the students to be musicians so that you're not just teaching music exactly as it is written down, but it's used as a guide for creativity where students are the composers or the improvisers.

And it's become the basis of our entire music curriculum in the Clark County School District for elementary schools.

-Every year, the Orff Festival brings together elementary schools from across the district.

(Haley Petersen) The Orff Festival will, like, include music like speech and different, like, theatrical elements.

-It's a pretty big deal.

And Mr.

Owen's students have been practicing hard.

[in unison] ♪ Orff ♪♪ (Eli Pennell) Oh, yeah, really hard.

-This year's theme will tickle your funny bone.

-The theme of the Orff Festival this year is songs or like musical jokes and nonsensical humor, so we do have a few songs that are just like pretty much nonsense.

-And the humor is everywhere.

-Like the moth and the bumble bee and the cow and the-- -Let me guess.

There's some weird twist ending, like that giant snake goes up and swallows everyone.

[exhales] [laughter] -Fifth graders, Haley Petersen and Mack Miller are the emcees.

-They sound like a bunch of barking dogs.

It's like, I studied my homework, but she didn't study her homework for the play.

And she's, like, forgetting her lines, and I'm trying to help her.

-And he's annoyed with me because he has to, like, say all the information.

-This group from Bozarth will join about 250 other students... -I like "The Swapping Song," and I will be playing the spoons in "The Swapping Song."

-...from nearly two dozen other schools... -So every single song is a collaborative piece where you'll have one or two schools playing instruments, another school doing movement out in front, and then all the other schools behind them on risers singing.

-...to create a performance to remember.

-Everyone in the Orff Festival, they have to, like, listen to each other's music parts in order for the music to, like, be able to come together smoothly.

So it's very fun.

-And if all goes well... -Our teacher made this joke a few years ago that to reward us, we got his cats.

He sometimes takes pictures of his cats just doing random stuff.

Cute, cool, and amazing!

-Yes, you heard that right.

-I just have to keep a permanent folder in my Google Drive through work that's cat pictures.

-From the sound of this last practice... -Yeah, I feel very ready.

I think we practiced a lot.

And, yeah, I'm excited.

-...we think the chances for cat photos are looking good.

-They blow me away every single day.

[singing] -Bravo!

Incredible job.

And love those cat pictures.

Here are some photos from this year's Orff Festival inside Ham Hall on the campus of UNLV.

Looks like so much fun.

What an amazing way to celebrate creativity, music, and students' talent.

And we have a lot of talent.