The Leonardo DiCaprio Foundation held its first-ever star-studded gala toward in late July to help fund the A-lister’s campaign to raise awareness for environmental causes. The guest list aboard the luxury yacht docked at the Domaine Dertaud Belieu winery in St. Tropez included names like Jared Leto, Marion Cotillard, Toni Garnn, Cara Delevingne, Joan Collins and Bono.

To mark the occasion, DiCaprio auctioned off the “Golden Myth” Damien Hirst sculpture for a cool $6 million to billionaire Len Blavatnik; a Harley-Davidson motorcycle signed by Scorsese, De Niro and DiCaprio earned $673,000; the charity’s namesake even threw in two walk-on roles in his next two movies, totaling $2.4 million – and Bono auctioned off a guitar for $1 million.

More than 500 attended the event.