Sharon Osbourne, Britain’s 25th richest woman, is starring in everything. Plus CBS-TV’s daytime talker “The Talk.”

Plus she’s the world’s reddest head.

So how often she get that hair done?

“I’m naturally auburn, reddish brown. My Irish mother was reddish. But keeping it now with these roots is a nightmare. I’m handy combing it, but I must go to the hairdresser for color every 10 days.”

Considering she’s as colorful as her roots, how would she describe herself?

“Friendly, personable, treat people with respect but very confrontational. Do things correctly, or I turn into an axe murderer. I’m not quiet — but I’m 59, I’ve earned that right —and I have no compunction if situations get out of order.

“None of us is perfect. Sorry now and again, I must fix up something sometimes and apologize if I’ve gone too far. Happens. I’m no pushover. So I apologize graciously, which you need do — especially at my age.

“I did something wrong to Susan Boyle on a radio show. It was so cruel. She can’t stand up and fight back. She’s not outspoken. You don’t do what’s out of order to a weaker person. So I apologized profusely. I feel better knowing she’s loving her success right now but, look, this is a tough business.

“Listen, every day for years I wanted out of my marriage. When you’re young and together, it’s the best and worst. Now I wouldn’t change anything about Ozzy.”

Sharon Osbourne also has 12 dogs.

“In terms of parents, nobody’s around. I’m solo. It’s why I adore my family so much. And animals. They’re such company. I rescue them all. I’m their hotel. I even baby-sit my friends’ pets. And I have a full-time nanny just to care for them. Bella, a 5-pound Pomeranian, is my favorite.”

Osbourne and “The Talk” co-stars were in NYC for a little VIP p.r.

“And while here might as well help the economy by shopping a little. There are six of us on the show. We’ve never worked together before so it’s sometimes tough to find the right recipe, but every day we’re getting bigger and we’re loving it.”

A PERSON’s comment on how aging Mick Jagger looks so youthful: “Every six months he has his lips rotated and his sidewalls cleaned.”

NEWSMAN’s comment on the presidential maybes: “In the toilet. Only salvation is a third-party candidate like Ross Perot. Very rich, who can come up with $1.5 billion because the election will cost $3 billion. Bloomberg’s the best shot.”

CHRISTIE’S is cleaning out Elizabeth Taylor’s closet. Previously, this star was above the title. Tomorrow, she goes under the hammer.

Yentas clutching fake Vuitton bags lined up to view her giant 33-carat solitaire, La Peregrina pearl, cognac diamond, rubies, emeralds, tiara, Diors, Valentinos, Scaasis, Oscars, Chanels. She had it all.

She’s gone. It’s gone. A 40ish man, embodying the generational divide, murmured: “Why such excitement? Who was she? A fat old drunk.”

Elizabeth Taylor Hilton Wilding Todd Fisher Burton Burton Warner Fortensky’s magnificent extravagance made me sad.

I wondered about this rush to acquire. Because . . . when it’s over it’s over.

THAT was Chris Noth appreciating “Almost Angels,” AC’s Taj Mahal burlesque show . . . Ethan Hawke at New York Stage and Film event: “At 40, I had an identity crisis. Alone, miserable in a hotel room, reading about actors, I learned of Christopher Plummer’s years of devotion to the craft. It saved my career.”. . . Don Rickles just lost son Larry, 41.

IT’s not easy being green. It’s not easy being Barbara, either. Here’s the story of Miss Walters’ exclusive one-on-one sit-down with Syria’s president:

For three weeks, this coup was on. She packed. Researched questions. Canceled engagements. Then, bodies being murdered in his country, it was off. She unpacked, ditched the research, reconnected her social and professional dates. Then it was on. She repacked, redid info, reassembled the team, canceled her reinstated calendar, liaised with our military on the ground.

Then off. Then, bingo, on again. Newer questions rehearsed. Safety, no guarantee. The State Department cited “Risks. Do not leave your Damascus hotel room.” Checking with the airlines, she learned nothing was flying there. Initially, when Royal Jordanian would only go to Jordan, saying, “Syria’s not safe for our pilots,” the possible alternative was a private plane.

President Assad wanted his cameras. She said no. Wanted to redo some answers. She said no.

Next morning, home, wearing dark glasses to hide a newly arrived eye infection, B.W. interviewed Herman Cain for her special on the 10 Most Fascinating People.

READER Roseanne Mauriello’s son Scott, 9, asked is corn oil from corn? “Yes.” Vegetable oil from vegetables? “Yes.” Then: What’s baby oil come from?

Only in New York, kids, only in New York.