• Those rumors about Tiger Woods in rehab have returned. According to People, Woods checked into a sex rehab clinic around New Year's and will be there until "Valentine's Day or thereabouts." (Perfect timing!) As for his estranged wife, Elin Nordegren, she's moved into a new home that's just a couple of miles from the gated community where she used to live with Woods. [People, TMZ, NYDN]
• Have Justin Timberlake and Jessica Biel split up? That's what some people are saying, since she spent the last week climbing Mt. Kilimanjaro while he was in Jackson Hole, Wyoming. And couples that are really in love would never spend a moment apart, would they? Didn't think so. [Radar]
• The Post reported a few days ago that Derek Jeter and Minka Kelly have made plans to get married in November. Naturally, this had led the Daily News to report today that the story is totally untrue and the couple hasn't even discussed getting engaged, at least according to one of Minka's friends. [NYDN]
• Forbes released its list of Hollywood's "top-earning couples" yesterday. The winner? That would be Beyoncé and Jay-Z, who reeled in $122 million last year, or more than double what Angelina Jolie and Brad Pitt collected. Possibly related: Beyoncé said yesterday that she plans to take a "hiatus" from singing so she can "live life." Which is what you'd do, too, if you made nine figures over the last 12 months. [Forbes, NYDN]
• The Conan-Leno mess is bad news for NBC. But it's also made late-night TV sorta watchable again, which is nice. [Gawker]

Born into the Johnson & Johnson clan's billions, Casey Johnson was among the first celebutantes to decamp to Hollywood in search of 21C fame. She died alone in a crumbling Mulholland Drive mansion, her body undiscovered for days.

♦ Is Naomi Campbell planning a secret wedding with her Russian boyfriend Vladimir Doronin later this month? Her reps say no, although the new emerald and diamond ring she sported in Miami this past weekend seems to suggest otherwise. [Mirror, NYDN, DS]
♦ Alex Rodriguez had a busy Thanksgiving. He spent half of Thursday with his ex-wife and kids and the other half with Madonna before jetting off to Mexico City with Madge. [NYDN, NYP]
♦ Amy Winehouse's estranged husband, Blake Fielder-Civil, says he was responsible for turning his wife into a junkie, and that he has to "let her go to save her life." [NYDN, People]
♦ Giants star Plaxico Burress, who shot himself in the leg while partying at Latin Quarter on Friday night, turned himself in this morning. [NYP, Newsday]