Nicole Richie & Joel Madden Getting Married!  —  They've been together for more than three years and have two children.  Now, Nicole Richie and Joel Madden are planning to make it official.  —  Richie said Monday night during a taping of the Late Show with David Letterman that the couple …

Charlie Sheen's Wife in Rehab  —  In what could be a blow to the prosecution's case against Charlie Sheen, Brooke Mueller is now in rehab for substance abuse ... TMZ has confirmed.  —  The criminal case in Aspen comes down to Charlie's word against Brooke's — she claims he put a knife to her throat and threatened her life.

Betty White to SNL: Are You Kidding?  —  Between her cameo with Abe Vigoda in a Super Bowl commercial for Snickers, costarring with Sandra Bullock and Ryan Reynolds in the romantic comedy The Proposal, and being recognized for lifetime achievement by the Screen Actors Guild …

Bachelor's Ali “Shocked” by Rejection, Bachelorette Talk is “Nice”  —  America probably hasn't seen the last of Ali Fedotowsky.  —  Just a week after she left The Bachelor for professional reasons, the 25-year-old fan favorite appears on Tuesday's Ellen DeGeneres Show …

Chynna Phillips Enters Rehab for Anxiety  —  Chynna Phillips of the pop group Wilson Phillips checked herself into rehab for anxiety over the weekend, her manager, Lizzie Grubman, tells PEOPLE exclusively.  —  Phillips is the half-sister of Mackenzie Phillips, whose claims last fall …

Oprah Says No Way to John Mayer  —  John Mayer's disastrous Playboy interview in which he dropped the N-word and told naughty bedroom secrets about Jessica Simpson is too much for even Oprah Winfrey to handle.  Oprah's couch — which has been a platform for dozens of celebrity apologies and explanations …

Megan Fox: I'd Make a Great Mother  —  Megan Fox says she has another role already in mind - that of a mother.  —  “No one believes me when I talk about this, but I'm really maternal,” Fox, 23, tells W magazine for its March issue, due on newsstands this week.

Woman of the Hourglass  —  Mad Men's Christina Hendricks finds talk of her body boring.  A minority opinion, to be sure.  Particularly this season.  —  Corsets, lace, cleavage, and silk.  Who better than Hendricks to model the new lingerie-as-outerwear trend?

EXCLUSIVE: Gossip Girl's Matthew Settle Splits with Wife  —  Spotted: Gossip Girl's Matthew Settle — with other women.  —  “Divorce is imminent,” a source says of the actor, 40, and his wife, model Naama Nativ (daughter Aven was born last March).  —  His wedding ring was off during NYC fashion shows February 11 and 12.

Damaged goods: Lohan not invited to much of Fashion Week … EDITORS' PICKS … BEST OF NYDN.COM

Jessica Simpson Talks John, Tony, and Jeans in Allure  —  Jessica Simpson is front and center on the cover of March's Allure, and inside the magazine she strikes even more pretty poses and looks back at her style evolution.  The issue, which hits newsstands on the 23rd …

EXCLUSIVE: Porn Star Who Claims Tiger Got Her Pregnant Is Compulsive Liar Says Her Step-Mom  —  Deborah Siwik, the step-mother of porn star Joslyn James — the woman who claims that she was impregnated by Tiger Woods — has exclusively told RadarOnline.com that James is a “compulsive liar.”

Couples Watch: Britney Spends Valentine's Day at McDonald's  —  • Britney Spears and beau Jason Trawick celebrated Valentine's Day with her boys, Preston and Jayden, but when the kids took their afternoon nap, the happy couple ran off together for a late lunch.  Their destination?

Avril Lavigne and Brody Jenner: Hookup Alert  —  Avril Lavigne and Brody Jenner might be Hollywood's hottest new hookup.  —  Sources tell E! News that 25-year-old Lavigne and the Hills star have been seeing each other quietly over the last couple weeks.  —  “They're hooking up,” an insider said, “but they're keeping it low-key.”