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Find out why Prince Albert was hanging with Leonardo DiCaprio and other A-listers in Saint-Tropez


UPDATED FEBRUARY 28, 2019 10:12 AM EST

Prince Albert II of Monaco and Leonardo DiCaprio  may seem like unlikely friends, but the royal was very supportive of the Hollywood star onWednesday night when he attended the Leonardo DiCaprio Foundationdinner in Saint-Tropez. Grace Kelly's son traveled 85 miles to the small town in the South ofFrance to attend the charity gala that raises money and awareness for environmental issues and their research.

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Prince Albert was given an award at the gala Photo: Victor Boyko/Getty Images

At the star-studded evening, that went on to raise $45 million, the 58-year-old Prince was honored with the foundation's first “New World Leadership Award.” The award recognizes the legacy of environmental conservation displayed by its recipient.

PRINCE ALBERT AND OTHER ROYAL DAREDEVILS

Albert was accompanied to the glamorous event by his wife of five years, Princess Charlene. The mom-of-two stunned in a monochrome gown and bold red lip. Aside from the royal attendees, many other famous faces turned up tosupport the Revenant actor and his charity. Models, includingJoan Smalls, Doutzen Kroes and Lily Donaldson, mingled with some ofHollywood's finest stars like Kate Hudson, Tobey Maguire, Jonah Hill, BradleyCooper and Edward Norton.

Bradley Cooper supported his friend at the event Photo: Getty Images

Leonardo'sclose friend Mariah Carey also took time out of her French vacation to attend the event. The WeBelong Together singeruploaded a picture of her cuddled up to the actor and congratulatedhim on the successful evening, “Greatjob Leo,” she captioned hersnap.

LanaDel Rey, The Weeknd and Andrea Bocelli were among the performersthat played for the guests. During the evening, there wasalso an auction that featured diamond cufflinks Leo wore when he won his Oscar, a week on setwith Martin Scorsese, an evening with Mariah Carey and the TerminatorGenisys skull donated by ArnoldSchwarzenegger.

"Great job Leo," Mariah Carey was very proud of her friend for putting on the incredible evening Photo: Instagram/@mariahcarey

Aswell as focusing on environmental problems, the evening also honoredthose affected by the recent Nice attacks, with the foundationdonating a portion of the gala's proceeds to GiveforFrance.org.