ENGAGED Former model Cheryl Tiegs, 50, to yoga and meditation master Rod Stryker, 40. It’s Tiegs’ fourth marriage, Stryker’s first.

JAILED Tattooed rocker Tommy Lee, 35, began serving a 180-day prison term at L.A. County Jail May 20 after being sentenced on spousal-abuse charges stemming from a February assault on his wife, Pamela Anderson, 30. Lee, who pleaded no contest in April, was also ordered to do 200 hours of community service and donate $5,000 to a Santa Monica battered women’s shelter.

DEALS Liquor giant and Universal parent Seagram Ltd. announced plans to buy PolyGram from Dutch electronics giant Philips. The $10.6 billion purchase will give Seagram ”a truly impressive roster of musical talent,” said Seagram CEO Edgar Bronfman Jr. at a May 21 press conference. The combined businesses bring together such diverse artists as Elton John, Chumbawamba, Hanson, and Shania Twain under one corporate umbrella. To help fund the deal, Seagram will sell its Tropicana juice business.

RECOVERING To rehab, or not to rehab? That’s the question for Charlie Sheen, 32, who was treated May 20 for an unspecified drug overdose. The actor was released from the hospital May 22 and checked into Promises, a drug-treatment center in Malibu. But he stayed less than a day before fleeing. According to police, Sheen called for a limo after leaving the center, but his car was stopped by authorities. ”He was medicated and had been drinking, so his doctor had him committed as a danger to himself,” said Sgt. Martin Dailey of the L.A. County Sheriff’s Dept. Sheen has since reentered Promises; his spokesman declines to comment.

DEATHS Actor-director John Derek, 71, of heart failure, May 22, in Santa Maria, Calif. A player in ’50s films like The Ten Commandments, Derek staked his claim to movie fame by saying ”Live fast, die young, and make a good-looking corpse” in 1949’s Knock on Any Door. But his true notoriety came from marrying beautiful blonds, including Linda Evans and Ursula Andress. He cemented his Svengali-like reputation by directing his fourth wife, Bo Derek (30 years his junior), in such soft-porn duds as Tarzan, the Ape Man (1981) and Bolero (1984)…. Jazz pianist Dorothy Donegan, 76, of colon cancer, May 19, in L.A. Donegan rose to prominence in 1943 when she became the first black performer at Chicago’s Orchestra Hall.