OFF AGAIN: Harrison Ford's wife, screenwriter Melissa Mathison, filing for legal separation Thursday, citing irreconcilable differences. The couple originally split in 2000, before reconciling earlier this year. Mathison is seeking joint custody of their two children.

THE MAN IN THE MIRROR: Michael Jackson will reportedly unveil a new, tougher look at his tribute concert in New York next month.

JACKSON ADD: Meanwhile, Sony Music and Epic Records announcing today that the King of Pop's first studio album in six years, Invincible, will hit stores abroad on October 29 and in the U.S. and Canada on October 30.

INSTANT KARMA: Beck, Moby, Alanis Morissette, Marc Anthony and Nelly Furtado signing on for next month's The Come Together Tribute: A Night for John Lennon. It will take place at New York's Radio City Music Hall and air on TNT September 20.

LENNON ADD: The walnut piano on which Lennon composed his hit tune "Imagine" returned to the musician's hometown of Liverpool for the city's annual Beatle Week celebrations Thursday. George Michael, who bought the piano for $2 million at an auction last year, gave his okay to the visit.

HER NEW CAUSE: Lucy Liu tapped as the spokeswoman for the sixth annual Lee Denim Day, which benefits a breast cancer foundation. Liu had her own breast cancer scare 10 years ago. She had a lump removed that turned out to be non-cancerous.

UN-SHAGGABLE: Shaggy dropping out as the opening act for Backstreet Boys (who relaunch their tour Friday with the rehabbed A.J.) to embark on his own solo North American tour in September. He'll also appear at Michael Jackson's upcoming 30th anniversary concerts at Madison Square Garden.

SECOND TERM? NBC's The West Wing will kick off the new fall season with President Josiah Bartlet (Martin Sheen) announcing that he will run for reelection, despite never having disclosed his multiple sclerosis to the public.

BLINDSIDED: An upcoming episode of Blind Date featuring Richard Hatch has been postponed pending resolution of the Survivor winner's recent arrest on domestic assault charges, a show publicist confirms.

BUSTED: Just one day after the Source Awards went off without a hitch, the co-owner of the Source magazine, Raymond Scott, arrested for reckless driving, battery on a police officer, resisting arrest with violence, driving with a suspended license and possession of marijuana.

CALLING Q! MGM announcing Thursday that James Bond will be back driving an Aston Martin again in the next 007 film (as opposed to his recent BMW models). The 20th installment of the long-running franchise, starring Pierce Brosnan, is slated for release in 2002.

LETTING IT OUT: Pop star Mariah Carey granting her first post-breakdown interview to ABC's Barbara Walters. The tell-all will air on 20/20 on September 12.

WYNONNA WEDDING BELLS: Country songbird Wynonna Judd and her road manager of 10 years, D.R. Roach, are engaged. It will be the second marriage for both. No date has been set.

BETTER THAN HIS RICE? Survivor chef Keith Famie wrapping up filming this month in Sedona, Arizona, for his new cooking show, Keith Famie's Adventures, set to air on Food TV in November.

CHANGE OF ADDRESS: Former Beverly Hills, 90210 costar Vanessa Marcil joining the cast of ABC's NYPD Blue in a recurring role as a police detective.

GAMECUBE PAUSED: Nintendo announcing today that it's pushing back the North American launch of its next-generation GameCube system from November 5 to November 18. The move is a boon for Microsoft's Xbox console, which will now be available on November 8 without competition.

FALLOUT: State regulators suggesting $59,000 worth of fines against Sony Pictures for safety violations on the Spider-Man set in the wake of a March 6 accident in which a welder was killed. The studio has until September 6 to appeal.

BACK WHERE HE BELONGS: Phantom of the Opera star Michael Crawford back on Broadway this season with Dance of the Vampires, a new macabre musical based on Roman Polanski's 1967 spoof, The Fearless Vampire Killers.

KUDOS: Country crooner Travis Tritt receiving the Veterans of Foreign Wars Hall of Fame Award, honoring an entertainer for distinguished service to the nation, veterans and the armed forces.

RELEASED: French film star Jean-Paul Belmondo discharged from a Paris hospital Wednesday after making a "remarkable" recovery from a stroke he suffered two weeks ago, said a hospital spokesperson.