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Conan O'Brien's final Tonight Show airs tonight. Then he'll head off to count the enormous pile of cash that NBC just gave him while he waits until September 1, which is when he'll first be permitted to host another talk show as part of the deal he signed with the network. As for NBC, it will air reruns of The Tonight Show until the Olympics start, with Jay Leno officially returning to his (very tarnished) throne on March 1. [TMZ, THR, WSJ]
• It looks like things are going from bad to worse for Mischa Barton. Her landlord has filed a lawsuit against her for failing to pay three months of rent on her $7,000-a-month Tribeca apartment before moving out of the place late last year. [NYDN, P6]
• Lady Gaga looked pretty banged up when she appeared outside her "Monster Ball" show last night to sign autographs. She she had bizarre cuts and bruises all over her arms and legs. And those mustard-colored extensions she's been wearing as of late aren't helping matters. [The Sun, 3am]

• Rosie O'Donnell is moving in with her new girlfriend. Which means the couple can now look forward to having a total of 10 kids between them running around the house. [People]
• Audrina Patridge and Ryan Cabrera are dating, according to People. But according to yesterday's New York Post, he's dating Lydia Hearst and he's supposedly moving with her to Los Angeles. So clearly someone has got some explaining to do. [People, P6]
• A golf fan at the Australian Open displayed a Photoshopped pic of Tiger Woods—sporting a pimp hat and bling, and holding a scepter instead of a golf club—while several women near held up signs that read, "I've been with Tiger." Let's hope the sex rehab center in Mississippi where Tiger is staying gets ESPN so he had a chance to catch this on the highlights reel. [NYDN]
• Plastic surgery victim Heidi Montag says she's "nervous to face her mother" and reveal her new look, especially since the emotional moment will be caught on camera for The Hills. Heidi's mom is said to be "horrified" by Heidi's recent round of surgeries, so at least one person in that family isn't completely insane. [People]
• Former John Edwards campaign aide Andrew Young didn't pull any punches in an interview that aired on ABC last night. Among other things, he says Edwards once asked him to steal one of the baby's dirty diapers and get a doctor to fake DNA results as part of Edwards' attempt to cover up the scandal. [Us]
• Charlie Sheen visited Brooke Mueller at the hospital yesterday and said she's "doing a lot better," so that domestic violence hearing should be happening in no time. [TMZ, People]
The Real Housewives of New York's Countess LuAnn de Lesseps—who split from her husband nearly a year ago—is dating again, in case you care. She says she has a few men who are "courting" her. But since nobody has used that term since the 1950s, we're not sure what that means exactly. [Us]
• Ping pong club Spin held a benefit to raise money for Haiti on Wednesday night. And yep, you guessed it, club investor Susan Sarandon spent much of the night hanging out with her alleged boytoy, Jonathan Bricklin. [P6, NYDN]
• Sharon Stone was spotted with two black eyes yesterday. So she either had some touch-up work done... or, well, something else. [Radar]
• It's a Jersey Shore tragedy! Lovable guido Ronnie Magro was spotted making out with a woman other his girlfriend, Sammi "Sammi Sweetheart" Giancola, over the weekend on Long Island. Lock it up, Ronnie. [TMZ]
• In other Jersey Shore news, Jenni "J-Woww" Farley has announced that she'll be designing a line of clothing, but it won't be out until this spring. So if you're interested in a "sexy sophisticated" top that shows more cleavage than any piece of clothing that has ever been produced in the past, you're going to have to wait a couple of months. [Fox411, People]
• If you're already feeling Jersey Shore withdrawal coming on after last night's finale, you're in luck. A porn parody comes out next month. [P6]
• Because he "didn't want to rely on a decorator" to pick out books for one of the rooms in his redecorated apartment, Denzel Washington spent two hours at The Strand buying 300 books to display on his shelves. [P6]
• She already makes handbags and shoes, and now Jessica Simpson is launching a denim line. How come? All because "a girl's booty needs to look good." Thanks, Jess, for looking out for women everywhere. [Us]
• Scott Baio is under fire for insulting Michelle Obama on Twitter this week. The good news: He hasn't generated this kind of attention since Charles 'n Charge was in its prime. [Popeater]
• Sad: On an Irish TV show, actor Gabriel Byrne revealed for the first time that he was sexually abused as an 11-year-old altar boy. [NYDN]
• Bristol Palin filed court papers this week demanding that Levi Johnston fork over $1,750 a month in child support. [TMZ]
• Did Chris Brown beat up Jean Paul Gaultier? No, but it sure looks like he did in this picture, doesn't it? [TMZ]
• Leonardo DiCaprio has donated $1 million to the relief effort in Haiti. George Clooney will reportedly do the same during the Hope for Haiti telethon tonight. [NYDN, People]