Lady Gaga's Jaw-Dropping Intricate Headpiece Is the Perfect Illusion

Lady Gaga is ready for the applause. 

The "Born This Way" singer debuted an instantly iconic ensemble as she hit the red carpet for the world premiere of Joker: Folie à Deux at the Venice International Film Festival Sep. 4.

For the occasion, Gaga donned a black, low cut Christian Dior Haute Couture gown, featuring a full, pleated skirt. She paired the dress with Tiffany jewels: platinum and diamond earrings, a diamond necklace and a classic Tiffany Victoria bracelet.

But the pièce de résistance was her black Philip Treacy headpiece, complete with intricate lace designs and two points at the top, along with a beaded black bow.

By her side on the red carpet was fiancé Michael Polansky, whom Gaga confirmed her engagement to at the 2024 Paris Olympics in July, and Joker: Foie à Deux costar Joaquin Phoenix.

In the sequel to the Oscar-winning 2019 film, Joaquin reprises his role as Arthur Fleck, a.k.a. The Joker, as he finds love with Gaga's Harley Quinn when the two meet at Gotham's Arkham Asylum.

As seen in the first trailer, the couple's love is so intense that they often break into song to express their emotions, with both Gaga and Joaquin singing live on set.

But as Gaga sees it, being a Grammy-winning singer and songwriter didn't necessarily give her a leg up as singing live with a pianist just off camera made her feel like another actor in the scene.

"For me it was kind of about unlearning technique and forgetting how to breathe," she told reporters in Venice, "and allowing the song to come completely out of the character.

The "Poker Face" singer added, "It gives the characters a way to express what they need to say."

And working with director Todd Philips, the two made sure that they were able to improvise when it felt right.

"We all really thrived in the moment and in the chaos of it all," Gaga said. "We had to find it every day. What was the truth of the scene, what was the honest moment."

To see more incredible looks from the Venice Film Festival, keep reading.

The Joker: Folie A Deux costars attended a photocall for the sequel.

Jude Law's daughter blew onlookers away in a navy gown at the Joker: Folie A Deux premiere.

Double date alert! The Clooneys hit the red carpet with the Bullet Train star and his girlfriend at the Wolfs red carpet premiere on Sept. 1. 

The Order costars banded together for a photocall for their new crime thriller.

The Oscar winners shared a laugh at the premiere of The Room Next Door on Sept. 2.

The Mummy star and the former James Bond actor were shaking—not stirring—things up on the Queer red carpet.

The Office alum was pretty in pink at the Wolds premiere.

The Babygirl actress came to the Venice Film Festical for magic—and to promote her new erotic thriller.

The Riverdale alum took the plunge in a strapless black gown from Armani Privé at the premiere of Babygirl.

But Lili wasn't the only former Riverdale resident to grace the red carpet! Camila—who played Veronica Lodge on The CW series—was also dressed to impress at the star-studded event.

The Maze Runner actress had no trouble finding her way to the red carpet Aug. 30.

From North Carolina to Venice! The Outer Banks actor looked dapper as he stepped out at the film festival.

Fall in love with the Fallout star's Armani Privé look at the Babygirl premiere.

It was date night for the couple at the Babygirl red carpet.

The Barbie actor was feeling fantastic at the film festival.

The Oscar winner took center stage at the Maria premiere during the 2024 Venice Film Festival.

It would be good 4 u to see the Enola Holmes actor and the "Brutal" singer's Venice Film Festival date.

The comedian suited up for the Disclaimer red carpet.

The Disclaimer stars and the Oscar-winning director struck a pose during a photocall.

The Squid Game alum made her mark in red at the Disclaimer premiere.

The Schitt's Creek alum's textured off-the-shoulder gown deserved an award for best in show at the 2024 Venice Film Festival.  

At the Beetlejuice Beetlejuice premiere, the 30-year-old delivered glam and all in a vintage Chanel gown that featured lace detailing and cutouts around her waist. 

The Beetlejuice Beetlejuice director and Spectre actress kept it simple for the movie's premiere, both sporting all-black outfits with over-sized sunglasses.

There's nothing strange about the Golden Globe winner looking absolutely stunning in a skirt and blazer set at the premiere of her film Beetlejuice Beetlejuice. 

The Memoirs of a Geisha star's fashionable black floor-length dress and newsboy hat are sure to earn plenty of fans. 

The 2024 Venice Film Festival said "chic" three times and the 72-year-old appeared in a classy all-navy suit. 

The Leftovers alum coordinated all-white ensembles with his girlfriend of over a year for the premiere of Beetlejuice Beetlejuice. 

The Beetlejuice Beetlejuice star stepped out on the movie's red carpet in a red chiffon gown with gorgeous cutouts. 

The Oscar winner was an absolute marvel in a metallic sleeveless bandage dress for the Beetlejuice Beetlejuice premiere. 

The Bones and All star stunned in a chic grey pintsripe ensemble.