Mariah Carey led the stars sharing a glimpse inside Leonardo DiCaprio's A-list fundraising gala in Saint Tropez on Wednesday night.
The singer cosied up to the man of the evening in one of many Instagram snaps that let everyone who didn't get an exclusive invite join in the glamour.
"Great job Leo," she wrote, which is a slight understatement for the insane charity party the Revenant star threw.
Raising money for the Leonardo DiCaprio Foundation, the celebrity guests got the chance to bid on lots including Arnold Schwarzenegger's Conan the Barbarian sword, a seven-night stay at Leo's Palm Springs home and lunch with Margot Robbie.
Movie bigwig Harvey Weinstein even offered a chance to live like a celebrity for a year, accompanying him to parties including the White House Correspondents' Dinner, the Met Gala and a pre-Oscars dinner, plus two month-long internships with his company.
Also up for grabs was a tiger painting by actor-turned-painter Adrien Brody, a chance to go to the US Open with Leo, a week on set with Martin Scorsese and a game of poker with Edward Norton and Jonah Hill.
Mimi also posed with singer The Weeknd and comedian Chris Rock, who joked "new couple alert", as she enjoyed the evening at the Domaine Bertaud Belieu vineyard.
Looking stunning in a low-cut black dress, she was joined at the event by her billionaire fiance James Packer.
Leo roped in friends including Bono, Kate Hudson, Tobey Maguire and Bradley Cooper to help raise money for his environmental charity, and some even bigger names to donate prizes.
Supermodel Naomi Campbell wore an eye-catchingly risque sheer black dress that even managed to draw attention from the other beautiful models in attendance.
Victoria's Secret model Joan Smalls shared a picture with fellow VS angels Constance Jablonski, Doutzen Kroes, Lily Donaldson and Anja Rubik.
Inside, Doutzen let her hair down as she hung out with Joan and modelling veteran Alessandra Ambrosio.
Model Barbara Palvin looked stunning in red as she posed alongside her own squad of catwalk companions.
Her gang included fellow hungarian Eniko Mihalik and Soo Joo Park.
Lionel Richie's daughter Sofia opted for a giant diamond and emerald chocker to accompany her plunging silver catsuit.
The 17-year-old held her own among the models, having recently been photographed for Vogue China.
Doutzen's husband Sunnery James didn't want the men forgotten as he made sure the beaus of the model beauties got into at least one picture.