Hailee Steinfeld Catches Air at 2024 Oscars in Breathtaking Couture Gown with Butterfly Sleeves: See the Look

Hailee Steinfeld arrived without boyfriend Josh Allen, wearing an ethereal Eli Saab Couture gown

Hailee Steinfeld is the high-fashion goddess the 2024 Oscars needed.

On Sunday, the actress — whose film, Spider-Man: Across the Spider-Verse is nominated for Best Animated Feature — hit the star-studded ceremony in an ethereal Ellie Saab Couture gown from the just-debuted spring/summer 2024 collection.

The pastel blue design featured a pleated skirt and a scarf draped around her décolletage. Steinfeld, 27, put on a show by throwing up her butterfly sleeves for the cameras. Gilded leaf appliqués covered the entire design, including the sweetheart neckline and wrist cuffs.

Her glam included a slicked-back updo that displayed her sparkly earrings and a mauve, smoky eye.

Related: 2024 Oscar Nominations: Barbie, Oppenheimer and American Fiction Among Nominees — See the Full List

Steinfeld arrived solo, without her boyfriend, Buffalo Bills quarterback Josh Allen. The couple, who were linked in May 2023, have yet to make their red carpet debut and continue to maintain privacy around their romance.

A source recently told PEOPLE that Steinfeld and Allen's relationship is "serious."

The insider said the couple have "always planned to spend more time together after his season ended," adding that things have been going "really well."

"They’re both very family-oriented and driven, and they want to protect their relationship and keep it private. They’ve been on the same page with all of that," the source said.

Related: Everything to Know About the 2024 Oscars

Earlier this awards season, Steinfeld proved her fashion prowess at the the 2024 Golden Globes, where she had a pretty-in-pink moment that gave us major Audrey Hepburn in Breakfast at Tiffany's vibes.

She turned heads in a custom bubblegum pink Prada column gown, black gloves and dazzling Boucheron jewels, as well as high a high bun with face-framing bangs.

Related: Hailee Steinfeld and Josh Allen's Relationship Timeline

Then, Steinfeld headed to Paris Fashion Week with her man, pulling a style 360 in a modern mini skirt and trench coat at Miu Miu's fall/winter 2024 fashion show.

She and the NFL star were spotted on a couple of date nights, including at the Miu Miu afterparty on March 5.

They also enjoyed a dinner date the night before, and all was well until Allen, 27, unexpectedly faced a wardrobe malfunction. If you missed it, Allen was captured exiting a car with a shirt or jacket around his waist, which, as he shared on X (formerly Twitter) was how he decided to hide the rip in his pants. C'est la vie!

The 96th Oscars will air live on ABC from the Dolby Theatre on Sunday, March 10, at 7 p.m. ET.

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