MADONNA'S A-LIST BASH!

Madonna held a benefit Wednesday night that could have been the Oscars! Bitch brought the stars out!

The singer hosted the Gucci event for UNICEF and her own organization, Raising Malawi.

Madonna says, "Gucci is important to me, because they stepped up to the plate to support me. And that means a lot."

So who was at the party?

Gwen Stefani, Gwyneth Paltrow, Demi Moore, Ashton Kutcher and Salma Hayek (whose fiancé Francois-Henri Pinault, oversees the Gucci brand), Jennifer Lopez, Sean "Diddy" Combs, Katie Holmes, Tom Cruise, Drew Barrymore, Justin Long, Rihanna and Timbaland and tons more!

WOW! What a guest list!