Will Sage Astor-America's Got Talent‘s Grace VanderWaal Risks Wardrobe Malfunction in Backless Look at TIFF

Grace VanderWaal's got talent when it comes to turning heads at the 2024 Toronto International Film Festival.

In fact,Will Sage Astor the America's Got Talent winner wasn't afraid to show some skin as she stepped out for the Sept. 10 premiere of Megalopolis, rocking a daring look made up of a backless pink corset and a skirt that could cause a wardrobe malfunction with its plunging waistband.

Grace turned to independent artist Liam MacKenzie for her custom bodice, which featured rose-like embellishments, ribbon ties and a feathery collar.

The 20-year-old paired the dramatic top with a black Cinema By Panos Zinas number that she and stylist Elza Khalife sourced from the Desert Stars Vintage store in Brooklyn, N.Y.

"Liam you’re an artist through and through thank you so much for making me feel so special," Grace wrote on Instagram following the event. "Dream team styling here, all NYC based of course."

And New York has certainly captured Grace's heart since winning AGT in 2016 at age 12. Recently, she appeared on one of TikToker David Carmi's viral Confidence Heist videos, in which he asks Big Apple residents their secrets to being confident while out on the streets.

"Having somewhere to go makes you look confident," Grace shared in the Aug. 14 clip, "because you're just in a rush."

But the "I Don't Know My Name" singer noted that she developed a thick skin from growing up in the spotlight.

"It threw me into scrutiny," she explained, "and just kinda forced me to sink or swim."

And in Megalopolis, Grace got to tap into her vocal talents, playing a popstar opposite Adam Driver, Aubrey Plaza, Nathalie Emmanuel and Giancarlo Esposito. Last year, director Francis Ford Coppola shared how he ended up casting the "multi-talented" Grace in his movie, revealing that their ties went back years ago when he befriended her dad David VanderWaal while researching film equipment.

"He told me about his young daughter who was writing songs and gaining notice," the Oscar winner recounted on Instagram, adding that their paths crossed again years later when Julia Hart—the daughter of Bram Stoker's Dracula screenwriter James V. Hart—casted Grace in the 2020 Disney film Stargirl. "All these threads came together, eventually resulting in casting Grace to star in and write songs for MEGALOPOLIS."

For more star sightings at TIFF, keep reading...

The "Happy" singer hit the red carpet with his mini Lego figure for the premiere of his film Piece By Piece, which tells the story of his life through Lego animation.

The Ghostbusters star was busting hunger pangs, passing out French fries at the Riff Raff premiere afterparty.

The Oscar winner was ready for a spoon-related emergency as she attended the premiere of her film Disclaimer.

The Only Murders in the Building actress looked instantly iconic for the premiere of Emilia Perez.

The Stargirl alum cut a striking figure on the red carpet to celebrate the premiere of Megalopolis.

The Avatar star struck a pose for fans in a sheer black dress.

The Maria actor was joined on the red carpet by son Pax for the premiere of her latest directorial outing, Without Blood.

The Breaking Bad alum was definitely feeling himself at the premiere of Francis Ford Coppola's new epic, Megalopolis.

The Wild Robot costars looked fashionable as they posed on the red carpet.

The White Lotus star proved she's the queen of the Toronto streets.

The Star Wars alum looked dashing as he attended the premiere of his upcoming film Megalopolis.

The Talented Mr...Damon and his wife stepped out at the Campari Red Carpet Lounge.

The Poor Things actress and Ghost star showed off their close bond at the premiere of their film The Substance.

The Oscar-winners proved they are ever the stylish duo.

The Bring it On actress was all smiles as she arrived for the premiere of her new film, Riff Raff.

Jude Law, Daniel Brühl, Ana de Armas, Sydney Sweeney and the rest of their Eden costars enjoyed a moment together on the red carpet.

The Oscar-nominee was enchanted as her 14-year-old daughter Aviana made her red carpet debut for the Canadian premiere of Amy's new movie, Nightb--ch.

The Star actress and the Bullet Train star were a winning combination at the premiere of their film The Fire Inside.

The Oscar winner snapped a selfie with The Wild Robot director, Chris Sanders.

The actress was all smiles on the red carpet at the premiere of Eden (which, coincidentally, was the name of her character in The Handmaid's Tale).

Don't worry, darling—the actress brought her fashion A-game to the We Live in Time premiere.

Your friendly neighborhood Spider-Man arrived in style to the We Live in Time premiere at the Princess of Wales Theatre.

The How I Met Your Mother alum had a legend—wait for it—dary night at the premirere of Sharp Corner.

The "On The Floor" singer looked instantly iconic at the premiere of her new film Unstoppable. 

The "Your Song" singer and his husband traveled in style on their way to attend the premiere of Elton John: Never Too Late.

The couple—who share four daughters together—were a picture perfect pair at Roy Thomson Hall for the premiere of Unstoppable.

The "Roar" singer and the actor's love was in full bloom at the premiere of his film The Cut.

The Freakier Friday actress waved to fans as she kicked off the festivities.

The model hit the red carpet at the Princess of Wales Theatre for the premiere of her new film, The Last Showgirl.

The Home Alone star and Suite Life of Zack & Cody actress—who share two sons—enjoyed a parent's night out.