The most daring looks celebrities have worn at the ACM Awards over the years

His denim jacket had long tails, while his vest underneath was embellished with ruffles.

The musician also wore a glitter-covered bow tie and his signature wire-rimmed glasses.

The model's revealing gown included a low-cut neckline, a lace-up corset bodice, and a thigh-high slit in its ruffled chiffon skirt.

The garment's bodice was styled like a halter top, with a plunging V neckline and thin straps that wrapped around her back.

But it didn't stop there. Underneath the shining material was a see-through, sequin-covered piece that added long sleeves and more sparkle to the look.

The halter neckline of her black dress was lined with diamonds, as was its mesh-covered cutout.

At the time, the ACM Awards were hosted by Universal and sponsored by Universal Studios Hollywood — a competitor theme park to Disney World.

That said, McCoy kept the rest of his outfit simple. He wore blue jeans, a black blazer, a white button-up shirt, and a black cowboy hat.

Emily Robison's orange getup included a netted bralette and a mid-rise, tie-dye skirt, while Martie Maguire donned a similar outfit in pink.

Natalie Maines, however, differed from the group by wearing a baby-blue minidress with a floor-length duster on top.

Her white, sleeveless gown had a thick row of ruched fabric that wrapped around her back, and a similar effect created its floor-length skirt and thigh-high slit.

A thin string held the gown's two straps together, and fabric butterflies lined its bodice.

To complete the look, Anderson added blue eye shadow and a crystal-covered purse.

From the front, her peach-colored dress looked simple. But when the singer turned around, you could see that its backless design reached her backside.

The back of the skirt was also split in the middle, revealing her strappy gold heels.

Not only did the embroidered look have a daring, short skirt, but it was also backless with thin, gray straps holding it up.

McBride paired the dress with a gold, beaded purse, matching sandals, and a choppy bob hairstyle.

Her black, sparkle-covered gown was classic in the front and bold in the back.

It had a high neckline, long sleeves, and a floor-length skirt — but almost no fabric in the back. Its open design revealed her spine and dipped to her backside.

The tan dress was covered with black lace and strips of tulle, creating the illusion that Witherspoon was naked under the sheer fabric.

Zuhair Murad designed the singer's deep-blue gown, which had long sleeves, a mermaid-style skirt, and cutouts that extended across Shakira's shoulders, chest, hips, and thighs.

The elegant look was also daring, with mesh-paneled straps, a plunging rectangle neckline, and a thigh-high slit on one side of its flowing skirt.

It was designed by Bibhu Mohapatra.

Parton made a few outfit changes throughout the night, but her multicolored look was the boldest.

She wore her crystal-covered jacket over a burgundy corset and yellow tie, and a sparkling, beaded belt sat across her hips.

Her naked-style dress, designed by LaBourjoisie, was crafted from tan mesh and lined with crystals in a leaf-style design.

And because the high-neck gown had a column shape, fluffy tulle was attached at the hips to add volume.

She originally walked the red carpet in a Naeem Khan gown but later changed into this metallic number that had long sleeves and a deeply-scooped neckline.