Since the two met in 1967, they’ve collaborated on dozens of sartorial splashes.

Click through for an exclusive look at Mackie’s designs for the new musical.

But while the designs hearken back to well-known outfits, there’s one change: They all have more.

The Metropolitan Museum’s Costume Institute Gala Exhibition of “Costumes of Royal India”

Ron Galella/WireImage

More sparkles, feathers, everything.

It’s how Mackie has updated countless Cher looks over the years: “More elaborate.

More covered in diamonds.

The Cher Showon BroadwayCostume Sketches

Bob Mackie

But it never seemed to be too much for her.”

In fact, nothing usually is.

“She walks in like she’s in her jeans.

The Cher ShowDirected By Jason MooreBook By Rick Elice

Joan Marcus

That’s part of [her] charisma.”

Block was comfortable wearing it.

“It’s very see-through.

The Cher Showon BroadwayCostume Sketches

Bob Mackie

It just covers up what you’re gonna wanna cover up,” he explains.

They were nervous about showing too much or too little.

Then they relax a bit.

The Cher ShowCostume Designer Bob MackieHeadshot

Harry Landgon

Actresses have never played anybody that glamorous or that outrageous."

“Its very, very strange,” he says.

“He dresses up a little more than I probably do.

The Cher Showon BroadwayCostume Sketches

Bob Mackie

He wears blazers and turtle necks and a little bit of a flared pant because it is the ’70s.

[laughs] They did their research.”

“It keeps increasing.

The Cher Showon BroadwayCostume Sketches

Bob Mackie

We threw a couple out, but we put in a dozen more.

I cant keep track.

They wear a lot of stuff.

The Cher Showon BroadwayCostume Sketches

Bob Mackie

“We were both starting our careers, and she loved clothes.

She loved to get dressed up.

She still does,” he says.

It’s Cher’s ability to rock any look and her distinctive features that continues to fuel Mackie.

“She had a thing about her,” he says.

“Nobody knew quite what to do with her.

Shes like a 1930s movie star.

She has this beautiful body.

She can look like any ethnic group you want to mention.

All you have to do is just put her in the clothes.

(For instance, his take on Cher’s 1984 Oscar dress adds a heavier gold sheen.)

We’ve managed to avoid that.

It’s part of what fans expect.

They don’t like it when she doesn’t dress up.”

Don’t worry, fans.

Mackie’s got you, babe.

The Cher Showis in previews now ahead of a Dec. 3 opening night.

More information can be foundat the show’s website.