Leonardo DiCaprio auctioned off two private Sir Elton John concerts for $3 million in aid of his environmental foundation.

Leonardo DiCaprio

Leonardo DiCaprio

The 40-year-old Hollywood star - who's a dedicated environmentalist and has previously described global warming as "the number-one environmental challenge" - staged a party for 1,000 guests, including the likes of Naomi Campbell, ­Orlando Bloom and Tommy Hilfiger, in St-Tropez, France and in total, raised more than $40 million for the Leonardo DiCaprio Foundation.

A source told the New York Post newspaper: "The entire area was covered with models. It was so crowded you couldn't move, but everyone just danced where they were in their gowns and tuxedos."

Leonardo also auctioned off his own Rolex, as well as artwork by Banksy and Andy Warhol, with the proceeds going to his foundation, which is "dedicated to the long-term health and wellbeing of all Earth's inhabitants".

The evening's entertainment - which extended until 4:30am - featured a performance from DJ Cassidy, while comedian Chris Tucker also showed off his Michael Jackson-inspired dance moves.

Earlier this month, it was revealed Leonardo is donating $15 million to more than 30 environmental groups "implementing innovative and impactful conservation projects around the globe".

In a statement, the 'Wolf of Wall Street' star said: "The destruction of our planet continues at a pace we can no longer afford to ignore.

"We have a responsibility to innovate a future where the habitability of our planet does not come at the expense of those who inhabit it. I am proud to support these organisations who are working to solve humankind's greatest challenge."

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