Oscar Party: 4:30 a.m. and Going Strong

On Saturday night, Rick YornLeonardo DiCaprio's longtime agent — told me I really couldn't come to his famous annual post-Oscar party, which he throws with talent agent Patrick Whitesell in the Hollywood Hills. "We've never had press," he said. "It's a rule."

Well, this morning I know why. I received a phone call from one of Yorn and Whitesell's guests at 4:30 a.m. PST. Just think — the Academy Awards show ended at 8:40 p.m. But the Yorn/Whitesell party is still in full swing. "It's set to end at 6 a.m.," my source informed me.

"The place reeks of pot. It's like a free for all. There are people in the Jacuzzi, and it's just wild."

Among the guests: Sean P. Diddy Combs, his protégé Fonzworth Bentley, actor Stephen Dorff, members of the "Motorcycle Diaries" cast, and lots of pretty young things. Whitesell, my observer reported, is "bombed." But not on the scene were DiCaprio or any of the agents' better known clients.

Of course, this party follows a bunch of celebrations that started when the Oscars were over, and all of them sound more exciting than the actual telecast.

Apparently, most of the winners and nominees quickly skipped out of the Governors Ball following the show and headed off to Elton John's bash at the Pacific Design Center, Vanity Fair's A-list blowout at Morton's, an Amnesty International fundraiser at Ago, a children's charity event at The Factory and Premiere magazine's elegant soiree at producer Ted Field's magnificent hilltop home.

Really, the Oscars themselves were so dull and desultory that it didn't seem like parties could save the night. But then I happened into Mortons, graciously invited by Editor in Chief Graydon Carter even after all the nasty things I've written about his magazine.

And even though there was a scarcity of minority Hollywood players at Mortons, there were boatloads of celebs period.

Among them — and it wasn't easy to make a comprehensive list — Warren Beatty and Annette Bening, Martin Scorsese, Harvey and Bob Weinstein, Adam Sandler, Hilary Swank and Chad Lowe, Duran Duran, Jane Russell, Jackie Bisset, Jon Voight, Johnny Knoxville, Suzanne Somers, Ben Kingsley, Katie Couric, Oprah Winfrey, Kirsten Dunst, Jake and Maggie Gyllenhaal, Tom Cruise, Cate Blanchett, the whole "Sideways" gang, Joy Bryant, Christina Aguilera, Gwen Stefani and Gavin Rossdale, Dustin Hoffman, Pam Anderson with photographer/filmmaker David LaChapelle, P. Diddy, the Trumps, the Hiltons, Scarlett Johansson, Adrien Brody, the Black Eyed Peas, Don Cheadle, Morgan Spurlock of "Super Size Me," South Park's Matt Stone, Joel Siegel of "Good Morning America," James Lipton, and more. I do mean more, too.

Vanity Fair's party was exclusive and au courant — witness Marcia Cross and Eva Longoria of "Desperate Housewives" — but it missed a certain ingredient. That would be Elizabeth Taylor, who — in a fragile state — walked up the grand staircase of the Pacific Design Center and caused a stir at Sir Elton's party. She managed to catch the pop star's performance, missing by seconds one by the Scissor Sisters.

And where was newly minted Oscar winner Jamie Foxx? Well, he was not at any of the big parties, that's for sure. Sources say he popped into a crowd put together at Koi by P. Diddy and his benefactor, Ron Burkle. Also seen there were Mariah Carey and a lot of hip-hop stars and actors.