Charlie Sheen: I Twitter for Cash!  —  Charlie Sheen told TMZ ... the reason he's taken up Twitter is simple — it's a “cash cow.”  —  Sheen told us ... his primary motivation behind the new ramblings is that he can score a fortune through advertising.  To give this some context …

BRITNEY FOREVER  —  Britney Spears, the sweetest girl who ever emerged from McComb, Mississippi, is once again on a mission to make us dance.  This spring, the greatest pop star of our generation returns with Femme Fatale, a suite of hits destined for good times, late nights, and heavy clubland rotation.

Paula Abdul Dials 911 to Escape Boyfriend's Car  —  Paula Abdul made a frantic and tearful 911 call during a Valentine's Day drive with a boyfriend — repeatedly screaming, “Drop me off!” ...  and TMZ has obtained the recording.  —  During the call — placed at 4:35 PM on Valentine's Day …

Whitney & Bobby's Daughter Bobbi Kristina Caught Snorting Coke!  [PHOTOS]  —  Bobbi Kristina, daughter to Whitney Houston and Bobby Brown, has allegedly been photographed sniffing coke.  The pictures have been published in the March issue of the National Inquirer.

Michaele and Tareq Salahi — the couple that allegedly crashed the White House — will enter the next season of “Celebrity Rehab” ... along with one of the greatest NY Mets players of all time ... TMZ has learned  —  Sources connected to the production tell us ... Dr. Drew will have one hell of a cast for Season 5 ... including:

EXCLUSIVE: Lindsay Lohan Official Statement: I Want My Father To Stop Talking About Me  —  Lindsay Lohan has broken her silence about her father's recent behavior, issuing a statement to RadarOnline.com condemning Michael Lohan for talking about her publicly.

Gotta Hand It To Zac  —  National Enquirer (March 14, 2011) claims Zac Efron has been spotted hand-holding with a dude at an NBA party at the W in L.A. on February 18: … The article claims that “Zanessa” are clearly not together, but are clearly still friendly.  —  Full article after the jump...

Simon Cowell Disses American Idol Replacement Steven Tyler  —  Simon Cowell admits to have watched “a bit” of this year's American Idol, and he tells Jay Leno, one of the new judges could use a facelift.  While appearing on The Tonight Show, Cowell admits to Leno:  —  “I haven't watched the whole show.

‘Hunger Games’ search heats up with Lawrence  —  Jennifer Lawrence, Hailee Steinfeld, Abigail Breslin vie for lead … With the Oscars over, two of this year's up-and-coming nominees are being considered for the hottest female role available at the moment: the lead in “Hunger Games.”

Scarlett Johansson & Sean Penn Take Whirlwind Trip to Mexico  —  It was a short getaway, but Sean Penn and Scarlett Johansson made the most of it.  —  The pair left on a private jet from Van Nuys airport Tuesday morning, then were spotted having dinner in Cabo San Lucas, Mexico, that night, according to sources.

Jay-Z Worried About Rihanna's Deteriorating Health Due to Punishing Schedule  —  When Rihanna performed at the NBA All-Star Game last month, it was apparent her typically stellar vocals were a bit on the weak side, as the singer was reportedly suffering from a bout with bronchitis.

EXCLUSIVE: Teen Mom's Jenelle: Handing Over Son Was Right Thing to Do  —  After a bitter custody war with her mother, Teen Mom 2's Jenelle Evans now knows handing over her 19-month-old son, Jace, was the right move.  —  “When he is older, I will tell him I was really young and I couldn't put …

THE DARK KNIGHT RISES, But Against Whom?  Major Spoilers  —  I just talked to a good source near the Batcamp and have come away with information about The Dark Knight Rises that confirms lots of speculation from recent months.  This is, technically, all spoilers.

Rihanna Poses Naked To Help Celebrate Nivea's 100 Year Anniversary  —  Nivea has announced that Rihanna will be the spokesmodel for their “100 Years Skincare For Life” campaign, and the cosmetics company will serve as a sponsor of Rihanna's world tour, which kicks off in May.

Lady GaGa makes catwalk debut in Paris  —  Lady GaGa has made her catwalk debut at Paris Fashion Week.  —  The ‘Born This Way’ singer made her appearance on the runway halfway through Mugler's womenswear fashion show, held at a gym on Wednesday.  —  The star, who arrived …

Selena Gomez Didn't Get Punched By a Justin Bieber Fan, Says Rep  —  Selena Gomez has received online threats from fans who adore her boyfriend, Justin Bieber, but have haters taken things a step further?  —  Rumors started on Twitter Wednesday that Gomez, 18, had been punched by a fan …

Holly Madison Unretouched In A Bikini, Talking Weight Gain (PHOTO)  —  Holly Madison has allowed unretouched bikini pics of herself to be published in Life & Style, and she tells the magazine how she felt when the producers of ‘Peep Show’ told her to lose weight.

Exclusive: Dual Hobbit Film Titles Revealed?  —  Ringer Spy Mr. Underbelly monitors movie titles that are registered by major film studios.  Mr. Underbelly noticed that New Line has recently registered the following two film titles:  —  The Hobbit: There and Back Again  —  and...

The Official Royal Wedding Web Site Is Launched  —  Start clicking: Prince William and fiancée Kate Middleton are set to reveal details of the bride-to-be's wedding dress on their newly launched Web site, which aims to celebrate all aspects of their upcoming nuptials.

Ken Starr, accountant to the stars, sentenced to 7 1/2 years for $30 million Ponzi scheme  —  Crooked accountant Ken Starr, whose clients once included actress Uma Thurman and Oscar-winner Natalie Portman, was sentenced Wednesday to 71/2 years in prison for a $30 million Ponzi scam.

D.A. Gets Financial Help From Oksana's Lawyer  —  L.A. County District Attorney Steve Cooley — whose office will soon decide the fate of Oksana Grigorieva and Mel Gibson — attended 2 fundraisers on his own behalf at the home of the lawyer who negotiated Oksana's $15 million settlement …