Rebel Wilson channels sailor chic as she throws a Mamma Mia-style yacht party ... trends now

Rebel Wilson channelled sailor chic on Wednesday as she threw an extravagant yacht party to celebrate her directorial debut in The Deb at the 76th annual Cannes Film Festival.  

The Pitch Perfect actress, 43, looked very stylish in a black-and-white sea-faring suit. 

She looked ready to take on the waters as she pulled her blonde tresses back into a sweeping low ponytail, while the smart ensemble hugged her stunning figure. 

Rebel was joined by a host of other starts for a Mamma Mia-style party, including Take That frontman Robbie Williams, who looked very striking in a rainbow suit. 

Meanwhile Sting and Trudie looked very loved-up as they posted for snaps by the gorgeous blue waters. 

The Deb will transform the Australian musical comedy into a film, with production set to begin in September. 

The film is produced by Amanda Ghost, Len Blavatnik and Gregor Cameron and tells the story of high school outcast Taylah and her feminist inner-city cousin Maeve at a debutante ball. 

Rebel is also set to star in the film, as well as branching into directing for the first time. 

The stars launched into a rendition of some of the songs from the musical, getting the party started as they later jumped into the water while still fully clothed. 

Meanwhile Culture Club's Boy George, 61, looked typically stylish in a grey hat and marbled shirt as he sipped on a cocktail. 

Adam Lambert, 41, donned huge sunglasses paired with pyjama-style pink shorts and shirt. 

And singer Ella Henderson, 27, also joined the party as she opted to wear all-black including a jacket with ballooned sleeves and a racy cut-out down the middle, exposing a sliver of skin. 

Later on Rebel showed she was getting into the swing of the party as she changed into a red cocktail dress to add to the bright array of outfits present.