Eva Mendes in Rehab  —  TMZ has learned Eva Mendes is in Utah battling a substance abuse problem.  —  We're told the “Ghost Rider” star is at the famous Cirque Lodge, near Sundance.  The Lodge, which treated Lindsay Lohan and other stars, is one of the most respected treatment facilities in the country.

Brit's Parents Make Their Move in Court  —  TMZ has learned Britney Spears' parents are going to court right now — the courtroom that establishes conservatorship for people whose personal health and welfare is gravely at risk.  —  Jamie and Lynne Spears will appear at the County courthouse …

Michelle Williams Breaks Silence on Heath Ledger: “My Heart Is Broken”  —  Michelle Williams is speaking out for the first time since ex Heath Ledger's untimely death January 22.  —  “Please respect our need to grieve privately.  My heart is broken,” Williams, 27, said in a statement released …

50 Cent Makes Paris Cry!  —  It's her party and she'll cry if she wants to.  —  During his performance at the Paris Hilton-hosted pre-Super Bowl party for 944 magazine last night, 50 Cent gave a shout out to Paris, who then started singing in the front row.

VERGE OF TROUBLE  —  KIRSTEN Dunst's strange ways have tongues wagging that she's “on the verge of a breakdown.”  The starlet came late, left early, and “acted erratic” during a recent event at Sundance, according to insiders.  The source added that friends of the actress...

Exclusive: Kirstie Alley's Lawyers Demand That ‘US Weekly’ Fire Writer Who Cracked A Scientology Joke  —  Defamer just managed to get our grubby mitts on a secret copy of a strongly-worded letter that “Actress” Kirstie Alley's legal team over at Goldman & Kagon recently sent to US Weekly.

Spears' 12-police escort prompts call for paparazzi limits  —  Media and paparazzi swarm a car hoping for a shot of Britney Spears.  She was not inside, but such image-seeking packs have prompted a councilman to call for a zone of clear space in public areas.

EXCLUSIVE FIRST LISTEN!  Heidi Montag's New Single  —  Heidi Montag is one step closer to fulfilling her dream of pop stardom.  —  The Hills star, 21, has dropped her new single, “Higher.”  Theron Feemster produced it.  —  The track is available at iTunes on Tuesday.

Courtney Love On Rehab, Buddhism & Britney  —  Images of Britney Spears strapped to a gurney in early 2008 shocked many, but she wasn't the first celebrity to have it happen to her.  In 2004, rocker Courtney Love was also photographed handcuffed to a gurney, about to be committed for her own erratic behavior.

Don't Follow In Your Sister's Skanksteps  —  This has gone on long enough.  Ali Lohan needs to quit looking like a 35-year-old single mother of three on lunch break from her job as a clerk at the Long Island DMV.  This girl isn't even old enough to drink and it looks like she's been through rehab a few times.

Alli Denied?  —  With Britney spears currently confined to the UCLA Medical Center, it's certainly a relief to know that her friends are still looking out for her - like Alli Sims!  We caught Britney's former assistant stopping by UCLA yesterday for a quick visit.

Hilary Duff wants to move on with dignity  —  WITH the release of her new album, Hilary Duff explains why her ambitions for this stage of her career can be summed up by its title, Dignity.  —  The headline was any singer's nightmare: “Hilary Duff caught lip-synching.”

J.Lo's hospital gowns to be couture  —  Plus: Star Jones getting truTV boot; sneak peek at Abdul's halftime show  —  Considering Jennifer Lopez has spent the bulk of her pregnancy swaddled in Roberto Cavelli, it shouldn't come as a huge surprise that the mom-to-be is planning on going couture during her stay on the maternity ward.