The event held at the Hollywood Palladium initiated the fundraising arm of the The Ellen Fund, which supports global conservation efforts for endangered species and works toward the completion of TheEllen DeGeneresCampus of the Dian Fossey Gorilla Fund in Rwanda.

“I just want people to care,” de Rossi, 46, tells PEOPLE. “I guess that is all we want, for people to care, and realize what it means for humanity to have these magnificent creatures alive and well.”

Michael Rozman/Warner Bros.

Ellen DeGeneres

Chris Martin.Michael Rozman/Warner Bros.

Gorillapolooza

James Corden, Ellen DeGeneres.Michael Rozman/Warner Bros.

Ellen DeGeneres

Th evening ended on yet another high note, withBruno Marsbringing the crowd back to their feet with renditions of his signature hits “Uptown Funk,” “24K Magic” and “Just the Way You Are.”

Bruno Mars.Flo Dechard

Bruno Mars

Diane Keaton, Ellen DeGeneres.Michael Rozman/Warner Bros.

Ellen DeGeneres

“They almost kind of observe you, but don’t take you in that much,” de Rossi says. “It is one of those experiences that won’t ever leave you, just making eye contact with a Silverback and feeling so small, and that we are just a part of nature, and that we are not ‘everything’, that we’re not that important really.”

“It just feels humbling,” the actress and activist adds. “And it is just a very intensely human experience.”

source: people.com