Calum's coke-fuelled orgy  —  Sordid ... Calum Best snorts Coke and romps with two vice girls  —  STRUTTING Casanova CALUM BEST is exposed today as a pathetic cocaine addict who gets his kicks from depraved orgies.  —  In public, Calum loves to lap up the glamour at celebrity parties with Hollywood actress LINDSAY LOHAN on his arm.

Pop princess Brit is toxsick  —  ANOTHER night, another LA party girl hits the deck.  —  But seriously, somebody needs to ship BRITNEY back to rehab asap.  —  The Toxic star had to be carried out of the men's toilets of an exclusive LA hotel bar on Sunday night after she was discovered vomiting uncontrollably.

YOU HAVEN'T HEARD THE LAST OF KEVIN FEDERLINE  —  Kevin Federline is NOT giving up on his musical career.  He is investing his OWN money to produce a second album.  The fact that his first album Playing With Fire was received with little enthusiasm hasn't deterred him.

Lindsay Lohan Pals Call DUI Bust a 'Wake-Up Call'  —  Lindsay Lohan has checked into rehab for the second time this year - and friends and family say they hope the second time is the charm.  —  "We're all happy that she is where she is," a friend of Lohan's tells PEOPLE in its new issue.

Beth Ditto's gay rant  —  The Gossip singer Beth Ditto says gay men in the fashion industry are to blame for the worrying size zero trend.  —  Plus-sized Beth, who has posed naked for this month's cover of NME magazine, slammed homosexual designers for putting unrealistic pressure on women to be skinny.

Source: Paris Hilton Is Dreading Jail Time  —  Paris Hilton may be putting on a brave face - she's spent the past week shopping and partying with friends - but a source tells PEOPLE the heiress is hugely distressed about her impending jail time.  —  "Paris hasn't been eating at all and her parents …

NOT SO STUNNING  —  PARIS Hilton was axed from an upcoming photo book of the world's most stunning heiresses - even before The Post reported that her half-aunt, Elizabeth Avanzino, is a junkie jailbird.  Celebrity lensman Roger Moenks planned to include the heir-head in "Inheriting Beauty …

Brittany Murphy's Husband Once Bought Fake Engagement Ring  —  Brittany Murphy and Factory Girl executive producer and writer Simon Monjack shocked friends and family in April by marrying after only four months of dating.  The couple skipped the proposal and honeymoon, exchanging Neil Lane rings …

Jordin reportedly had some help to win 'Idol'  —  $10 million doesn't buy much of Michael Jackson's time  —  Jordin Sparks says that she can't take credit for her fabulous voice because it's a gift from God.  Apparently, the "American Idol" winner also had a little more earthly help: she reportedly had a vocal coach.

A-ROD'S A YANKEE DOODLE RANDY  —  HITS A STRIP JOINT WITH TORONTO BABE  —  Yankees superstar Alex Rodriguez stepped up to the plate with a mysterious, busty blonde in Toronto, as these intimate, exclusive photos reveal.  —  The cozy duo dined with two pals at a pricey steakhouse late Sunday night …

MUSIC MOGUL CRAMPING KELLY  —  NOTE to music industry legend Clive Davis: Stop trashing Kelly Clarkson - you are making yourself look bad.  —  "Clive is furious because Kelly has assumed total artistic control over her new album and refuses his suggestions," according to an insider at Sony BMG, the parent of Clarkson's label, RCA.

MISSING ELEMENT  —  ONE of Mark Wahlberg's former bodyguards is annoyed at HBO's "Entourage," which is produced by Wahlberg and based on his life.  Leonard Taylor, who worked for Wahlberg for a long time "back in the day" and is African-American, told us, "There are no black people on the show.

Petra Nemcova Wears the Shortest Skirt Ever  —  It doesn't take much to make me happy in this world, and there definitely isn't very much to Petra Nemcova's dress, so you know that makes me happy.  In fact, if it was any shorter, I'm pretty sure it would be a shirt, and then we'd all be even happier.

ONE-HIT WHAT?  —  REMEMBERING the words to his hit songs is not one of Bobby Brown's prerogatives.  Before the rapper was scheduled to perform at Stereo by the Shore in the Hamptons Saturday night, he partook in a 30-minute make-out session with girlfriend Alicia Etheridge …

Actress Jaime King Engaged to Director  —  Actress Jaime King and filmmaker Kyle Newman are engaged, her rep tells PEOPLE.  —  The Sin City star met Newman a year ago while working on the film Fanboys, which he directed.  —  King, 28, recently wrapped production on the thriller They Wait …

PAPA DO PREACH: DAD PLANS HAMPTONS RELIGIOUS DETOX  —  Lindsay Lohan's dad has teamed up with a firebrand preacher to establish a $15 million treatment center in Southampton - for people like his drink- and drug-addled daughter.  —  Michael Lohan, who reacted in horror to Lindsay's lifeless image …

Radio hosts push Usher's buttons  —  DAILY NEWS GOSSIP COLUMNISTS  —  Watch what you say about Usher's lady!  —  The formerly press-shy R&B star is so mad for his fiancée, Tameka Foster, that he has been calling radio hosts to blast them for making fun of her.