Cannes 2015: The leading ladies at The 22nd amFAR Ball

After all the red carpet appearances and media interviews it was time for the A list stars in Cannes to let their hair down at amfAR's 22nd Cinema Against AIDS black tie Gala.

It's a highlight of the Cannes Film Festival and this time, everyone's dressing up all for a good cause.

One by one the stars descended on the Hotel du Cap-Eden-Roc on Thursday evening (21 May) for the event hosted by Bold Films and Harry Winston in a dazzling parade of non-stop glamour.

Leading the way were models Kendall Jenner, Gigi Hadid and Lara Stone all of whom had dazzled on the red carpet.

The Keeping Up with The Kardashians star followed up her stunning entrance on Wednesday in an Azzedine Alaia two-piece ensemble, with another youthful crop top and full skirt from the Calvin Klein Collection.

Bollywood beauty Aishwarya Rai Bachchan, whose stunning red carpet appearances have been the talk of the festival looked 'pretty in purple' in a glittering gown with mauve tones.

22-year-old Victoria's Secret model Karlie Kloss showed off her svelte figure in a loose-fitting silver Tom Ford dress.

As well as the model set, the movie stars mingled with the biggest names in music and even British royalty. Eva Longoria, Irina Shayk, Chanel Iman, Lily Donaldson, Charli XCX and Dita Von Teese rubbed shoulders with Sarah Ferguson.

Cannes jury member British actress Sienna Miller also made an appearance in a stunning silver dress. Rita Ora turned heads in a heavily ruffled Marchesa dress from the designer brand's Autumn/Winter 2015 collection while British singer Charli XCX looked wore her trademark black Vivienne Westwood dress.

The L'Oreal ambassadors were out in force with Hollywood beauty Eva Longoria wearing a delicate mint green gown by Georges Hobeika.

US socialite Paris Hilton wore a dress in a lilac shade covered with delicate embellishments.

The event will feature a live auction, musical performances and a fashion show.

Last year's event raised a record $35 million for amfAR, a foundation dedicated to ending AIDS through research.