Putting On The Ritz! Julianne Hough, Nina Dobrev & More Drop Jaws At amfAR Gala — See The A-Listers' Gorgeous Gowns

On July 16, the stars slipped into their best ensembles to attend the amfAR Gala, which took place during the Cannes Film Festival.

The 27th annual event, which consisted of a fancy dinner, auction and fashion show, raised an astonishing $11 million this year for amfAR's life-saving AIDS research programs.

Scroll down to see a few of your favorite celebs dazzle on the red carpet!

Legs for days! The Vampire Diaries alum slicked back her hair to draw attention to her strapless Mônot dress, which featured a thigh-high slit and sharp neckline.

"It's all very glamorous until you realize you’re late for the party..." she quipped on Instagram. Dobrev also wore a pair of Jimmy Choo heels and carried a leather Christian Dior clutch.

So voluminous! The Oscar winner stunned in a black Schiaparelli ballgown that she topped with a black-and-white shawl.

"Thank you Amfar for continuing your work to make HIV/AIDS history," she stated on social media. "Got me feeling 6 feet tall and honored to be a part of an important night."

The Glee star looked suave in a Balmain suit that wowed with its sequined coat. His wife was just as glamorous with her silver dress and black feathered bag.

The Dancing With the Stars pro was picture perfect in a champagne Nicolas Jebran gown. The one-shoulder dress featured a vertical cutout at the midsection and a long train.

"First red carpet in what seems like a lifetime, and couldn’t be happier that it was in support of amfAR The Foundation for AIDS Research," the starlet said after the bash.

Just peachy! The Marvelous Mrs. Maisel lead oozed elegance in a satin Vivienne Westwood gown.

Bright hues could also be seen in her jewelry, as she modeled purple Cartier drop earrings.

"Merci @amfar for a beautiful evening. I continue to be inspired by the dedication of the amfAR family to the fight against the global AIDS epidemic," the actress said. "This year’s event came with renewed hope that, from witnessing the world’s urgent response to the COVID-19 pandemic, science is capable of extraordinary things when we come together to dedicate our time and resources against a common enemy."

Purple reign! The star's lavender Dolce & Gabanna dress boasted an embellished bodice and feather detailing on the skirt. Stone, who played host for the night, was later joined by her son Roan, 21.

The actress sparkled in a Nicolas Jebran design. Graham revealed the event "was my second carpet of the night and my third look of the day," so she saved time by sticking to the same hairstyle.