Heidi Montag Files for Legal Separation  —  TMZ has learned Heidi Montag just showed up at the Santa Monica Courthouse and officially filed for legal separation from Spencer Pratt.  She lists irreconcilable differences as the reason for separation.  —  Heidi did not file divorce papers.

‘Real Housewife’ in Real Sex Tape Drama  —  Originally posted less than a minute ago by TMZ Staff  —  Another “celebrity” sex tape is about to hit the market — and this time, the people distributing the footage claim the star is Danielle Staub from “Real Housewives of New Jersey.”

Lindsay Lohan's SCRAM Bracelet Is Set Off  —  Lindsay Lohan has some explaining to do.  —  Her court-ordered alcohol-monitoring bracelet, called a SCRAM device, was trigged Sunday evening during an MTV Movie Awards afterparty, according to a source close to the case.

Lady Gaga ‘Alejandro’ Music Video Premiere  —  Lady Gaga is back (did she ever really go away?) with the new music video for her summer smash, “Alejandro,” and naturally it's a pretty intense affair.  The Steven Klein-directed clip clocks in at 8:44 and is described by the Lady herself as a …

EXCLUSIVE HOME VIDEO: Jon Gosselin Stoned  —  In what may be Jon Gosselin's biggest embarrassment yet, RadarOnline.com has exclusively obtained a never-before-seen home movie showing the former reality star and his then girlfriend Hailey Glassman stoned out of their minds.

Singer Brown denied entry to UK  —  US singer Chris Brown has been forced to postpone his UK tour after being denied a visa to enter the country, it has been confirmed.  —  Brown was refused permission on the grounds of being guilty of a serious criminal offence, the Home Office said.

Melissa Rycroft and Chris Harrison Team Up for Bachelor Pad  —  Melissa Rycroft is heading back to The Bachelor mansion.  —  She's not trying to find love again — in fact, she's happily married to Tye Strickland.  Instead, she'll be co-hosting Bachelor Pad, a new ABC show featuring previous contestants …

Kiss and tell: Smooch with Scarlett Johansson at MTV Movie Awards was all Sandra Bullock's idea  —  Sandra Bullock stole the show at Sunday night's MTV Movie Awards by sharing a stage smooch with Scarlett Johansson — and Gatecrasher hears the lip-lock was all Sandy's idea.

Jailer Wanted ‘No Smoking’ Zone for Charlie Sheen  —  The woman who threw the monkey wrench in the Charlie Sheen plea agreement wanted to tighten the screws on Charlie to the point he couldn't even light up a cigarette while he was out working at a local theater ... TMZ has learned.

Gemma Arterton enters the Bond of marriage as she weds Italian she pencilled in her diary as ‘future husband’  —  She has seduced James Bond and romanced the Prince Of Persia.  —  But actress Gemma Arterton married her real-life hero, fiance Stefano Catelli, in a private ceremony tucked away in a sun-soaked Spanish village.

Will And Jada Pinkett-Smith Let Their Daughter Willow Out Of The House Like This  —  Will and Jada Pinkett Smith's daughter Willow made a bold style move (or maybe she was just being a kid) at “The Karate Kid” Los Angeles premiere on Monday.  —  The 9-year-old was supporting her brother Jaden …

EXCLUSIVE: Mom: Kelly Preston Was “Longing for” a Baby After Jett Died  —  Kelly Preston's mom, Linda Carlson, tells UsMagazine.com she “burst into tears” when she heard her daughter was pregnant with her third child at age 47.  —  “I cried so hard I couldn't see straight, just bawled my eyes out,” she said.

Michael Lohan to Open NY Nightclub  —  They say ‘Do what you know’ — and since Michael Lohan knows booze ... Lindsay's father is now opening up a nightclub in NY.  —  TMZ has learned Michael is a partner in a new nightclub opening at the Annona restaurant in the Hamptons — a club aptly named, “Controversy.”

Campbell won't climb stairs  —  Steps?  Naomi Campbell doesn't do steps.  The diva caused a stink when she was supposed to be promoting her perfume line by canceling an appearance because she didn't want to walk up some stairs, The Post's Janon Fisher reports.

Michael Fassbender: Choice Between Spider Man and X Men  —  Michael Fassbender had a hot year last year, in Quentin Tarantino's “Inglourious Basterds,” and in Steve McQueen's “The Hunger.”  —  He also proved himself a good dancer in Cannes with Robin Wright Penn at the big “Basterds” party.

Kourtney Kardashian's Blog: Where Mason Gets His Looks!  —  This week our newest celebrity blogger — Kourtney Kardashian — addresses some of your comments about her 5½-month-old son Mason's uncanny likeness to her brother, Rob, and to their late father, Robert, who passed away from cancer in 2003.

Kim Kardashian May Be the Next Lara Croft (Plus Five Dream Roles for Her)  —  Kim Kardashian might like to snap up the title of Sexiest Video Game Girl sometime soon, taking over Angelina Jolie's role as buxom ‘Tomb Raider’ vixen Lara Croft.  Hollywood insiders tell Showbiz Spy …