From sultry siren to disco diva: Karlie Kloss stuns on red carpet in thigh-high gown... before dancing down the catwalk in sequins at amfAR Gala 

She's taken time out of her studies at New York University to attend the Cannes Film Festival.

And Karlie Kloss certainly looked like she was having plenty of fun as she attended the amfAR Cinema Against AIDS Gala on Thursday night.

After wowing on the red carpet in an off-the-shoulder Marchesa gown with thigh-high split, the supermodel then changed into a sequinned asymmetrical dress for the charity auction.

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Night out: Karlie Kloss certainly looked like she was having plenty of fun as she attended the amfAR Cinema Against AIDS Gala on Thursday night

Night out: Karlie Kloss certainly looked like she was having plenty of fun as she attended the amfAR Cinema Against AIDS Gala on Thursday night

All change: The 23-year-old danced down the catwalk in a blue sequinned asymmetrical number

All change: The 23-year-old danced down the catwalk in a blue sequinned asymmetrical number

Karlie was just one of a host of models and celebrities who attended the annual charity event at the Hotel du Cap-Eden-Roc in Antibes.

The American was easily one of the best dressed on the red carpet as she made her grand entrance in her stunning black gown.

She completed her looked with diamond earrings and bracelets, with her short blonde hair pinned back in a bun.

Lady in black: Karlie wowed on the red carpet in an off-the-shoulder Marchesa gown with thigh-high split

Lady in black: Karlie wowed on the red carpet in an off-the-shoulder Marchesa gown with thigh-high split

Making an entrance: was easily one of the best dressed on the red carpet in her stunning black gown
Making an entrance: was easily one of the best dressed on the red carpet in her stunning black gown

Making an entrance: was easily one of the best dressed on the red carpet in her stunning black gown

Garden party: The 6ft 1in model navigated the art of the walking on grass in high heels

Garden party: The 6ft 1in model navigated the art of the walking on grass in high heels

She gave her already lofty 6ft 1in even more of a boost with a pair of vertiginous diamante high heels as she tottered down the red carpet.

Once in the garden of the five-star hotel, she caught up with her model pals, including Lily Donaldson and Toni Garrn.

Karlie and a host of her model contemporaries took to the stage to auction off dresses to raise money for amfAR.

Let's get this party started! Karlie was in high spirits as she showed off one of the Studio 54-inspired fashion collection
Let's get this party started! Karlie was in high spirits as she showed off one of the Studio 54-inspired fashion collection

Let's get this party started! Karlie was in high spirits as she showed off one of the Studio 54-inspired fashion collection

Karlie and a host of her model contemporaries took to the stage to auction off dresses to raise money for amfAR

Karlie and a host of her model contemporaries took to the stage to auction off dresses to raise money for amfAR

She's got the moves: Karlie certainly got into the disco spirits as she shimmied with (L-R) Isabeli Fontana, Soo Joo Park and Jourdan Dunn

She's got the moves: Karlie certainly got into the disco spirits as she shimmied with (L-R) Isabeli Fontana, Soo Joo Park and Jourdan Dunn

After changing into the blue shimmering number, the model hammed it up as she shimmied down the catwalk

The disco-themed collection was inspired by Studio 54 - the iconic New York nightclub which closed 11 years before Karlie was even born.

After changing into the blue shimmering number, the model hammed it up as she shimmied down the catwalk.

She certainly seemed to be in high spirits as she cheered and clapped her fellow clotheshorses as they followed suit. 

Red alert: Karlie caught up with model pal Lily Donaldson, who looked lovely in a red Miu Miu dress

Red alert: Karlie caught up with model pal Lily Donaldson, who looked lovely in a red Miu Miu dress

Stunner: Karlie looked immaculate as she arrived at the hotel in Antibes

Stunner: Karlie looked immaculate as she arrived at the hotel in Antibes

The fundraiser, which raises money for AIDs research, also saw the likes of Katy Perry perform for the A-list crowd, while Adriana Lima co-chaired the event.

After posing up a storm on the red carpet, the celebrities make their way into a lavish dinner which is followed by a no expense spared auction, with last year's event raising a staggering $30million.

The event, which takes place just outside of Cannes, also featured Kirsten Dunst, Vanessa Paradis and Donald Sutherland who are serving as chairs for the Cannes Film Festival Jury.

Mwah! Karlie looked thrilled to see her German model friend Toni Garrn

Mwah! Karlie looked thrilled to see her German model friend Toni Garrn

Lemme a take a selfie: Toni and Karlie cosy up for a selfie during the champagne reception

Lemme a take a selfie: Toni and Karlie cosy up for a selfie during the champagne reception

Hilarious: Karlie goofs around in her sunglasses with Soo Joo Park, Doutzen Kroes, Lara Stone, Barbara Palvin and Irina Shayk

Hilarious: Karlie goofs around in her sunglasses with Soo Joo Park, Doutzen Kroes, Lara Stone, Barbara Palvin and Irina Shayk

Waiting game: Karlie and fellow guests wait for their moment in front of the paparazzi

Waiting game: Karlie and fellow guests wait for their moment in front of the paparazzi

Model behaviour: Karlie joined her fellow models and Uma Thurman on stage

Model behaviour: Karlie joined her fellow models and Uma Thurman on stage

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