LOS ANGELES, Calif. -- Following the sudden death of socialite Casey Johnson on Monday, Paris Hilton took to her Twitter account to express her grief.

'I feel so sad right now, my heart is in pain. Just lost a longtime friend. My heart goes out to her family. R.I.P. Casey Johnson Love you,' Paris Tweeted on Monday after hearing the news that Casey, a member of the Johnson & Johnson dynasty and Tila Tequila's fiancee, died in Los Angeles.

HOLLYWOOD, Calif. -- Celebutante Paris Hilton is always known for painting Hollywood red on a big party night like Halloween, but was her Saturday night more frightful than fun?

According to the New York Post and several photo agencies, while Paris and boyfriend Doug Reinhardt seemed cheerful early in the evening at Heidi Klum's 10th Anniversary Halloween party, later in the evening, they were feuding.

LOS ANGELES, Calif. -- Paris Hilton is getting piggy with it.

The heiress is adding a miniature pig to her pet collection.

LOS ANGELES, Calif. -- Paris Hilton hit the red carpet last night in New York City for the opening of Carnival at Bowlmor Lanes, but she was sure to Tivo her debut on The CW's 'Supernatural.'

Paris appeared on Thursday night's episode of the CW sci-fi drama and she told Access Hollywood she had to do some real training for the role.

LOS ANGELES, Calif. -- Forget just being 'hot' - Paris Hilton is about to become 'Super.'

The celebutante will appear on the October 8 episode of The CW's 'Supernatural' - however, series creator Eric Kripke says the appearance is much more than a casting stunt.

LOS ANGELES, Calif. -- Tonight, MTV will screen the new documentary, 'Paris, Not France,' which highlights celebutante Paris Hilton's rise to fame.

'I think there are a lot of people that have misconceptions about me,' Paris told Access Hollywood's Tony Potts in a new interview. 'They assume I'm just a party girl and they don't realize there's a business behind it. I've created this over the past 10 years.'

LOS ANGELES, Calif. -- The sudden death of 'Paris Hilton's British Best Friend' contestant Kat McKenzie has left the hotel heiress devastated.

'I am deeply saddened to hear the tragic news of my friend Kat McKenzie,' Paris said in a statement released to Access Hollywood.

LOS ANGELES, Calif. -- Following her split with Doug Reinhardt, Paris Hilton was spotted with soccer star Cristiano Ronaldo just 24 hours later - but the starlet says they're just 'good friends' who are 'getting to know each other.'

LOS ANGELES, Calif. -- The news of Lauren Conrad's ex's (Doug Reinhardt's) split with Paris Hilton came as a surprise to the reality star on Wednesday, as Access Hollywood's Billy Bush was the one to clue her in - the second time on Wednesday he'd broken news to a celeb (having alerted Carrie Prejean to her Miss California firing earlier that morning).

'I didn't know that!' the former 'Hills' star said of the split. 'I thought they were a good match.'

LOS ANGELES, Calif. -- Paris Hilton is single again, according to People.

The celebutante and former 'The Hills' star Doug Reinhardt have reportedly broken up.

LOS ANGELES, Calif. -- Police arrived in Paris Hilton's neighborhood for the second time in a week on Thursday night over an alleged noise complaint, but the celebutante's boyfriend, Doug Reinhardt, said it wasn't because of a rumored fight.

'Last night, my girlfriend, Paris, got a prank phone call from someone pretending that her dog Tinkerbell was let out of her house and it was [run] over,' Doug told Access Hollywood's Billy Bush in an interview for 'The Billy Bush Show' on Friday. 'She started screaming and crying about it, thinking it was true.'

LOS ANGELES, Calif. -- Paris Hilton claims she was not involved in a handful of vandalism incidents that allegedly ended with several luxury cars being keyed and egged in the Hollywood Hills.

LOS ANGELES, Calif. -- Paris Hilton plans to hit the Kentucky Derby for the first time ever this weekend - with boyfriend Doug Reinhardt -- and she plans to make an entrance brimming with style.

NEW YORK, New York -- Paris Hilton may never earn an Oscar nomination -- but at least she's got a shot at a Webby.

The time has come for honoring not only the best of film and television, but also news, viral videos, podcasts and everything else online.

The 13th annual Webby Awards will recognize excellence in all things Internet; including NBC.com, Yahoo's OMG!, and even last year's infamous Shiba Inu Puppy Cam.

NEW YORK, New York -- Paris Hilton may never earn an Oscar nomination -- but at least she's got a shot at a Webby.

The time has come for honoring not only the best of film and television, but also news, viral videos, podcasts and everything in between.

The 13th annual Webby Awards will recognize excellence in all things internet; including NBC.com, Yahoo! OMG!, and even a Shiba Inu Puppy Cam.

LOS ANGELES, Calif. -- Has Paris Hilton found her future fiance?

'He's going to be my husband,' she giggled to E! Online at the I Heart Ronson for JCPenney party in LA.