A CRAZED Christina Applegate fan has bombarded the actress’ fiancé with chilling death threats. The Anchorman beauty and her musician partner Martyn LeNoble called Los Angeles cops following a slew of menacing tweets. LAPD officers have launched an investigation and obtained a warrant to search Twitter HQ in San Francisco, reports TMZ. Terrifying tweets aimed at Martyn that are listed in police documents include: “You stole (Christina) away from me. If not for you she would be mine. I will not accept this. I am going to kill you!!!!!!!!!!” “I'm going to bust your head in for taking her away from me!!! Be afraid, be very afraid!!” “You think this is a joke? I want to see how funny you think I am when I blow your f****** head off!!!” Detectives are reportedly struggling to track down the perpetrator, who has since deleted his Twitter profile. Christina and Martyn – who have both previously been married once – got engaged on Valentine’s Day 2010 after dating for two years. The screen star has heaped praise on her man for supporting her throughout her battle with breast cancer. Christina gave birth to their first child, daughter Sadie, in January last year.

KRISTEN Stewart shows off her long legs in a sexy satin black and white playsuit on the red carpet in Tokyo.

The Twilight star is in the Japanese capital promoting vampire sequel Breaking Dawn Part 2.

And she left fans in the Far East desperate to sink their teeth in the latest installment - dazzling in a tiny check outfit and balancing on a pair of daring gladiator heels.

Kristen, 22, even managed a rare smile as she posed for photos in front of posters promoting the premiere on December 28.

Happy again ... Kristen smiles for photographers in a satin Louis Vuitton check playsuit

The actress has plenty to be happy about after boyfriend Robert Pattinson forgave her for her affair with her Snow White director Rupert Sanders.

R-Patz ditched his Twilight co-star earlier this summer when photos emerged of her kissing Sanders in a parked car.

But they were back in each other's arms in Los Angeles last week.

The couple are said to be taking things slow - and they have plenty of time to contemplate their relationship this week, as they're separated by an ocean and several thousands of miles.

While Kristen promotes Twilight in Asia, Rob is drumming up support for the new movie Down Under.

He was photographed grinning as he posed with Twi-hards in Sydney this week - before hitting the city's nightlife with pals.