Tito Ortiz Arrested for Domestic Violence  —  TMZ has learned Tito Ortiz was just arrested for domestic violence at the home he shares with Jenna Jameson.  —  We're told when cops arrived to the home in Huntington Beach, CA — Jenna Jameson had “visible injuries.”

Trump: Bret Michaels in ‘Big, Big Trouble’  —  Donald Trump tells TMZ Bret Michaels is in “big, big trouble and the prognosis is not great.”  —  Michaels is a contestant on this season's “Celebrity Apprentice” and, ironically, Trump says Michaels' scrappiness is the best thing he has going for him.

Lindsay Lohan tosses glass at Samantha Ronson  —  Troubled Lindsay Lohan has been banned from hot LA club Trousdale after throwing a glass at ex Samantha Ronson's head.  Witnesses tell us that Ronson was sitting with friends when Lohan stormed up and suddenly threw her drink — including the glass — at her on Friday night.

Whitney Houston's voice fails her in sold-out London concert  —  By Traci Watson, Special for USA TODAY  —  LONDON — Hundreds in the audience walked out of Whitney Houston's comeback concert here Sunday as the singer once dubbed “The Voice” missed high notes, cut short her songs and apologized for her shortcomings.

Jesse's Mistress to Sandra: So Sorry  —  TMZ has obtained a letter that Melissa Smith — Jesse James mistress #2 — faxed to Sandra Bullock's agent on Sunday, apologizing for her alleged affair with Jesse ... and it's pretty audacious.  —  Smith wrote to Sandra, “I felt I needed to reach …

Dina Lohan: Lindsay, Ali Getting “Restraining Orders” Against Michael  —  Lindsay and Ali Lohan are going to court to keep their father, Michael, away from them following his recent attempt to stage an intervention, Dina Lohan tells Us.  —  “We will be getting restraining orders... It will happen imminently,” Dina says.

‘Kick-Ass’ star, 19, engaged to 43-year-old  —  She's already a mom of two, and is expecting a baby with teen actor  —  Sam Taylor Wood, left, and Aaron Johnson arrive at the premiere of “Kick-Ass” in Los Angeles on April 13.  —  Movie trailer  —  ‘Kick-Ass’: April 16

Michael Douglas was seduced at sixteen by two of his mother's friends, who were both 30 at the time  —  The actor recently told Elle magazine that he was seduced by two of his mother's friends when he was 16/  —  He may not have starred in “The Graduate,” but at 16 Michael Douglas met a real-life Mrs. Robinson — two, in fact.

Lady Gaga: The Grandmother of Pop  —  As her old friend chronicles in this never-before-told tale of her rise, the biggest pop star in the world didn't ask anyone to like her.  She told them to.  And she has plenty more to say.  —  Dressed as a piece of celebrity pop art at a launch party and AIDS benefit in London in March.

Kristin Cavallari: 'I'm Definitely Not a Bitch'  —  Has the bad girl from The Hills turned good?  —  Kristin Cavallari, known for her unvarnished opinions on the MTV reality show, says she's a better person than she's portrayed on the show — and that the real Kristin is the one who's been doing charity work recently.

Carey Mulligan set to become Girl with the Dragon Tattoo  —  FOR Carey Mulligan, who sprang to fame last year in the hit British film, An Education, Hollywood has come knocking.  She is set to play Lisbeth Salander, punk heroine of the bestselling thriller The Girl With the Dragon Tattoo.

Marc Jacobs and Lorenzo Martone split  —  Fashion world power couple Marc Jacobs and Lorenzo Martone have split — for now.  “They've both been telling people that they broke up,” friends said.  Martone shot down rumors this month that he'd moved out of the Chelsea Merchantile apartment …

‘I Will Kill You With My Bare Hands,’ and Other Fun Tales of Russell Crowe  —  Russell Crowe is set to capture America's heart all over again when Robin Hood hits theaters in two weeks.  But let us not forget: Russell Crowe is crazy.  Some exclusive excerpts from a new book remind us just how crazy.

Mariah Carey Is “Not Pregnant,” Rep Says  —  Sorry, lambs.  —  Mariah Carey, 40, isn't expecting with husband Nick Cannon, 29.  —  After photos surfaced of the two — who are about to celebrate their two-year anniversary — at Beverly Glen Deli in Beverly Hills Saturday, blogs speculated the curvy singer could be with child.

Warner Bros., DC Comics developing ‘Batman Live’ stage show (exclusive)  —  A Batman stage show soon might be swooping to a town near you.  —  Warner Bros. and DC Comics are in the early stages of developing a tour, tentatively titled “Batman Live” and starring the Caped Crusader …

Beyoncé buried up to her neck in sand by her nephew on family holiday in Hawaii  —  Beyoncé heads down to the water to rinse off the sand after being buried up to her neck by her nephew on the beach during a family holiday in Hawaii.  —  Almost every inch of the singer's bootylicious body …