NEWSMAKERS: Christian Slater, Married Man

‘Tis Valentine’s Day, for loved ones to unite and lovelorn to show spite. In observance of this occasion, we find Tinseltown’s love/no-love meter has been cranked up a notch.

Former bad-boy Christian Slater got married over the weekend to former television producer Ryan Haddon at the Four Seasons Hotel in Beverly Hills. The ceremony Saturday night was attended by 150 guests, according to his publicist, and officiated by author Neale Donald Walsch. The vows were taken from Walsch’s book “Conversations with God, Book 3.”

Slater, 30, was once as notorious for his bad behavior as he was for his wicked eyebrows. After squiring actresses (and co-stars) Winona Ryder, Samantha Mathis and Patricia Arquette as well as Christina Applegate and supermodel Christy Turlington, he was sued for palimony by longtime girlfriend Nina Huang after their 1995 split. He was later arrested for allegedly beating then-galpal Michelle Jonas and a police officer during a drug and alcohol-fueled brawl and spent three months in jail.

But that’s all in the past; Slater‘s a family man now. He and Haddon, 28, have a 10-month-old son, Jaden Christopher, who will accompany his parents on their Hawaiian honeymoon.

ALL IN THE FAMILY: David Bowie and wife Iman have announced that they’re expecting their first child in August.

Says the once-androgynous rocker, “It’s been a long and patient wait for our baby, but both Iman and I wanted the circumstances to be absolutely right, and didn’t want to find ourselves working flat out during the first couple years of the baby’s life,” Bowie, 53, said in a statement.

He and 44-year-old Iman, the Somali-born supermodel, were married in 1992. They have one child each from previous marriages.

Meanwhile, Oasis rocker Noel Gallagher suffered a crib-death scare over the weekend when 18-day-old daughter Anais suddenly turned blue and stopped breathing for about 30 seconds, reports London’s Mirror. The musician phoned paramedics and passed instructions to his mother-in-law, who lay the baby on her back to clear the airways. The hospital gave Noel and the baby’s mother, Meg Mathews, a breathing monitor in case the problem recurs.

COUPLINGS AND UNCOUPLINGS: London is also the setting for an engagement between Jamiroquai frontman Jay Kay and Brit TV star Denise Van Outen, according to the Sun tabloid. The paper reports that Kay (real name Jason Kay) proposed with a $15,990 engagement ring after popping the question over dinner at his home.

Across the ocean, all was not well on the Dominican Republic front, where singer-actress Diana Ross and husband Arne Naess formally divorced Friday. The nation, which is the place for quickie divorces as long as one of the spouses is present, granted the split to the couple, who were married in 1986 and separated in April. The former Supreme, 55, and Naess, 61, have two children; Ross also has three daughters from previous relationships.

But in New York, a happy marriage took place for, well, Sigourney Weaver‘s dog. The actress’ pooch exchanged collars with a “studly” Italian greyhound, which she calls “the Mel Gibson of Italian greyhounds,” in a pre-mating marriage ceremony (or “muttrimony”) at an Upper East Side pet boutique, according to the New York Post. No word on the prenup agreement.

QUICK TAKES: Film critic Rex Reed was arrested Saturday after he was allegedly caught shoplifting three CDs from a Tower Records store. The New York Observer columnist, 61, was seen removing albums by Mel Torme, Peggy Lee and Carmen McRae and putting them in his jacket pocket. Security officials stopped him, and he was charged with larceny and criminal possession of stolen property …

… Miramax Co-Chairman Harvey Weinstein emerged last week at a party for the New York Post’s Page Six after months of rumors about the illness that kept him away from Sundance and the Golden Globes. The company spokesman maintains that Weinstein, 47, suffered a bacterial infection and is now back in the swing of things — minus 40 pounds and wearing a nicotine patch to keep him away from those cigarettes.

Leonardo DiCaprio is supporting Al Gore for president, according to an interview in the new Time magazine. The star of “The Beach” says he’s on the verge of joining his campaign and almost took the stage during the New Hampshire primary to cheer on the White House hopeful. “I was going to just stand onstage and look hardcore,” Leo tells Time. But likely he knew that would elicit fainting spells from the campaigner’s daughters.

YOUNG AND RESTLESS: We’d like to take this time and promote some starlets who, despite their fame, looks and Internet downloads, are in the mood for love this Valentine’s Day.

Perennially chirpy Jennifer Love Hewitt says, “I’m afraid that I’ll never get married because I’m a hopeless romantic.” She’s currently seeing a musician she won’t name, but as the 20-year-old recently revealed at a magazine luncheon in New York, “I’m going to end up alone when I’m 95, sitting home surrounded by 19 cats.”

And teen pop queen Britney Spears, who has exchanged e-mails with Prince William, has confided her Valentine’s Day wish to TV Guide Online: “My dream is to make a movie and to have a love scene with Ben Affleck. He is so real and so warm.”

But if Ben‘s not available, she’d still like to date someone in show business. “Of course, if I met somebody at McDonald’s and I fell in love with him, I’d have to go with my heart. But it would help being in the same industry, because you know what that person is going through, scheduling-wise,” Spears, 18, says.

So basically, if you’re a celebrity or a McDonald’s cashier, you have a shot.