Haim performed a surprise show at Cannes Film Festival.

Haim sisters Alana, Danielle and Este

Haim sisters Alana, Danielle and Este

The 'Forever' hitmakers - comprised of sisters Este, Danielle and Alana Haim - sang at Calvin Klein and IFP's Women in Film reception, which honoured actresses including Rachel Weisz, Isabelle Huppert, Mélanie Laurent and Emily Blunt.

The swanky reception was held at a private villa on Monday (18.05.15) and was also attended by 'Nightcrawler' star Jake Gyllenhaal, esteemed filmmaker Harvey Weinstein, and a flurry of models including Joan Smalls, Natalia Vodianova, Doutzen Kroes and Lily Donaldson.

The show comes after the trio announced they are working on their sophomore record, which will follow-up their 2013 debut, 'Days Are Gone'.

The band began recording the LP back in January with the help of producer Ariel Rechtshaid, and insisted last June the album would "come very soon".

They said at the time: "This is the first time we've ever written on the road. We're going home in a month to start recording. I promise record two won't come in six years, it'll come very soon."

Meanwhile, 'Rock DJ' hitmaker Robbie Williams has also been in Cannes, performing at Chopard's Gold bash to guests Uma Thurman, Adriana Lima and Irina Shayk.