Kelly Osbourne is "working on something" with Pharrell Williams.
The 'Fashion Police' host - who appeared in a 24-hour interactive video for 'Happy' which the singer made public last November - has been in the recording studio with the producer, but she hasn't given any details of the mystery project, other than to say she admired her collaborator's fashion sense.
She wrote on her blog: "Recently I was in the studio pre-Grammy's with Pharrell Williams working on something... 😉 he was wearing the infamous hat!
"If you know anything about my fashion sense you know that I am a huge fan of Vivienne Westwood!!!!! So naturally one of the first things out of my mouth was oh my god you are wearing my favorite Westwood hat. (sic)"
The 29-year-old star - who has previously released two albums, in 2002 and 2005 - first shot to fame appearing on 'The Osbournes' alongside her parents Ozzy and Sharon and brother Jack and has thanked fans for their support on the 12th anniversary of the programme's launch.
She wrote: "To this day, it's been 12 years since the first episode of "The Osbournes" first aired!! WHAT A RIDE IT'S BEEN! Look at us THEN and NOW! thank you for all the love and support through the years xoxo (sic)"

Carmen Electra feels sexier than ever.
The 41-year-old actress is much more "comfortable" with herself and says feel good on the inside is the most important thing.
Speaking to the new issue of FHM magazine - for which she is the oldest cover girl in the publication's history - she said: "I feel more comfortable now. Less nervous. I feel like I'm in a really good place in my life and just being in that space makes you feel sexier. FHM has supported me throughout my career and I'm very honoured to be on your cover again.
"The secret to being sexy starts on the inside first. I think it's all about embracing yourself. I love being on shoots because you can get into the fantasy of it all. I love getting into new outfits too, stuff I wouldn't normally wear."
Carmen shot to fame starring in 'Baywatch' and though the TV series ended over 15 years ago, she still has her iconic lifeguard costume.
She admitted: "I still have the red swimsuit. The whole Baywatch experience was just crazy, because it was such a new phenomenon at the time. It was really exciting and I learnt a lot working on that show."
The new issue of FHM magazine is on sale now. Visit fhm.com/carmen for more.

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One Direction want to write a hit song for a new pop act.
The boy band - made up of Harry Styles, Liam Payne, Niall Horan, Zayn Malik and Louis Tomlinson - have approached a number of acts after getting into songwriting, including girl band Neon Jungle.
The band's Amira McCarthy, 17, told the Daily Star newspaper: "Liam Payne knew who we were and said he was listening to our song in the car. He said that he'd really like to write for us, so we're waiting for the song."
American boy band 5 Seconds Of Summer - who supported One Direction on tour - have also been jamming with Niall and are said to be working on ideas for songs.
Member Calum Hood, 18, said: "We found our common ground was Busted. So there's a few pop rock ideas kicking around already. We'd love to make it happen."
The news come after Liam, 20, and Louis Tomlinson, 22, were named as One Direction's biggest earners after co-writing almost half of the songs on their album 'Midnight Memories', while Harry has also written a song with John Legend for US 'X Factor' duet Alex and Sierra.
Liam said: "We're really enjoying the writing process and we've recorded some of the best material ever for the next album. It's a real step forward."
Niall, 20, has also been learning new chords on his guitar having been taught by friends Ed Sheeran, 23, and Olly Murs, 29.
He said: "I get the guitar out whenever I can. Writing music is really therapeutic."

Queens of the Stone Age think festivals have become "too grand".
The rock band - made up of Josh Homme, Troy Van Leeuwen, Michael Shuman, Dean Fertita and Jon Theodore - have ruled out a summer festival and chosen to play a co-headline tour in Australia with Nine Inch Nails instead.
Frontman Josh told Australia's fasterlouder.com: "Lots of festivals are like 50 or 60 bands. It's too much to encapsulate, the idea is too grand.
"I think the notion of somewhere between six to 10 bands is much stronger ... Everyone's chasing the dough all the time instead of trying to make art.
"I know that Trent [Reznor from Nine Inch Nails] and myself get so obsessed with trying to set [our] own bar that it's nice to put bands together and have that solidarity and have something that's greater than the sum of its parts."
Queens of the Stone Age have played a number of festivals in the past including V Festival, Download, Big Day Out and Splendour in the Grass, and Nine Inch Nails - featuring Trent, Robin Finck, Alessandro Cortini and Ilan Rubin - were rumoured to be playing this year's Soundwave tour but said it wasn't the "right vibe" for the band or their fans.
Talking about the decision, frontman Trent said: "That got misconstrued [by Soundwave promoter AJ Maddah] into I'm trying to be - what was it? 'Justin Timberlake'? A better way of saying it is, 'I think your bill sucked and I'd rather not be on that bill.'"
He thinks their latest tour, which kicks off today (06.03.14) at the Entertainment Centre in Sydney, raises the stakes.
Trent joked: "We've gotta throw down or someone's gonna get hurt," adding, "But that's good, everyone wins when you know you have to go all out. That's an exciting facet to what this tour is."

Michael Bublé likes people to have sex to his music.
The 'Close Your Eyes' singer has admitted he likes the thought of people making love while listening to his romantic songs and hopes some shout out his name during the act.
He told the new edition of Cosmopolitan magazine: "I think that's amazing. I love that I get to be a small part of their intimacy," adding, "I just hope sometimes they call my name out."
Michael released his eighth studio album 'To Be Loved' last year and is currently touring the UK with gigs in Birmingham, Glasgow and Manchester in coming days.
The star, who has a six-month-old son, Noah, with his wife, actress Luisana Lopilato, was seen looking happy with his family at Disneyland in California last month.
The 38-year-old hitmaker previously admitted they had "drunk awesome sex" to conceive.
But he admitted wasn't always that sexy, saying: "My wife is so beautiful but it wasn't like that. She was very, 'You know what Mike? It's nine o'clock on Tuesday night and we must do it now', adding, "But you know what's funny, I think when we conceived was actually when we were wasted in Milan and it was the one night we just had drunk awesome sex!"

Britain's Princess Diana tricked Oprah Winfrey by letting her eat a high-calorie meal.
The late princess, who died in a car crash in Paris, France in 1997, met with the talk show host for lunch many years ago and "pulled a fast one" by eating a low-calorie dish, while Oprah, who has struggled with her weight over the years, was served a full-fat mousse.
The 36-year-old royal's former chef Darren McGrady revealed: "They were both eating tomato mousses and, after a few mouthfuls, Oprah, another famous dieter, put down her spoon and said, 'Diana, how do you stay so slim eating rich food like this?' The princess replied, 'I just eat small portions and work out'.
Darren, who told Richard Mineards, a columnist for the Montecito Journal, admits it "wasn't quite the truth" and Oprah, 60, was left in the dark about what really happened.
He said: "Diana had me serve her a fat-free version of the mousse, while Oprah was eating the full-fat dish chock full of mayonnaise, sour cream and heavy cream," adding: "Diana never did tell her the truth," added McGrady.
The princess struggled with bulimia while married to Prince Charles and her eating disorder was revealed in the 1992 book, 'Diana: Her True Story', written by Andrew Morton.
She first battled bulimia in 1981, and sought treatment for the disorder in the late 1980s, after she started to follow a strict diet following comments in the press about her "pudgy" appearance.

Rita Ora turned down a £1 million contract to become a judge on 'The X Factor'.
The 23-year-old singer was said to be "flattered" by TV boss Simon Cowell after he asked her to join the show's line-up for this year but reportedly turned him down.
A friend told the Daily Mirror newspaper: "Rita was formally offered the 'X Factor' job and was very flattered, but turned it down.
"She is out in LA at the moment, having meetings, making contacts and working hard in the studio."
The 'R.I.P' hitmaker is set to release her new album this summer and her friend claims she has made it her main priority as she also juggles an acting career, after landing a role in 'Fifty Shades of Grey', the movie based on the erotic novel E.L James.
The friend continued: "She wants to focus purely on her music and not get distracted by other things. She also saw how Jessie J's album struggled after she appeared as a coach on 'The Voice', and thinks the two could be connected.
"Rita thinks Jessie might have come across badly on TV. For now, Rita is staying away from reality TV and is concentrating on the day job."
Simon, 54, is shaking up the show this year and returning as a judge with the hope of mimicking the success of the series in 2010, which saw the birth of One Direction.
Cheryl Cole is rumoured to be returning to the panel, while Gary Barlow, Nicole Scherzinger and Sharon Osbourne have quit, and Rita has spoken about the opportunity of becoming a judge.
She said: "There were talks. But if I were to take on that role, it would have to be at a point when I could give it my full attention.
"I have so much to accomplish first and it's kind of a full-time job being on X Factor. It's not like a nine to five. It's constant, for months."

Katy Perry had been having doubts about her relationship with John Mayer "for some time" before they split.
The 'Dark Horse' singer reportedly called time on her 18-month romance with the 'Gravity' hitmaker last week but an insider says the decision had been a long time coming.
The source told E! News that Katy, 29, felt there were "certain differences in their personalities" and she felt she and John, 36, were "not right for each other" but she took some time to "acknowledge" her instincts and end the relationship.
According to the source, Katy is said to be "relieved" the romance is over and is ready to move on with her life.
The pop star - who was previously married to Russell Brand - is currently in Australia and brushed off questions about her relationship status during a TV interview earlier this week.
While appearing on 'Sunrise', fans outside the studio were able to ask Katy questions, with one enquiring: "We were just wondering if you have a boyfriend."
The 'Roar' hitmaker laughed and replied: "If I have a boyfriend!? All of my fans are my boyfriend!"
She then leaned over to a koala bear seated in the studio with her and said: "This is my boyfriend! See!"

Kourtney Kardashian and Scott Disick are reportedly planning to marry.
The 'Keeping Up with the Kardashians' star is said to have accepted a proposal from her long-term partner - with who she has children Mason, four, and Penelope, 20 months - and the pair are planning to tie the knot very soon at close friend Joe Francis' luxury five-star Casa Aramara property in Punta Mita, Mexico.
Insiders say Kourtney "finally agreed" to tie the knot with Scott because things between them are "going really well" and she also wants to offer commitment to her partner following the tragic deaths of his mother Bonnie in October and father Jeffrey less than three months later in early January.
A source told Life&Style magazine: "Kourtney realised that she's all he has. It's made her see things differently. This is the perfect time for Scott and Kourtney to get married."
Though the couple are planning an intimate wedding, they won't spare any expense and will splash out $100,000 on round trip private jet flights for their loved ones, as well as $30,000 a night on accommodation.
Though it is unknown when the pair will marry, the magazine reports they already celebrated their bachelor and bachelorette parties last month.
Kourtney and Scott are said to have hired wedding planner Sharon Sacks - who oversaw the nuptials between Khloe Kardashian and her now-estranged husband Lamar Odom - and the brunette beauty has asked family friends Lorraine Schwartz and Vera Wang to design their wedding rings and her dress respectively.

Lily Allen likes men to be manly.
The singer - who has two-year-old daughter Ethel and 13-month-old Marnie with her husband Sam Cooper - isn't attracted to guys who take too much care over their appearance and loves the fact Sam is so low-maintenance.
Lily explained in her special guest-edited edition of Shortlist magazine called How to Be a Man, By Women: "I like that when my husband gets up in the morning he spends about 12 seconds looking in the mirror and then leaves.
"I'm not into men who are vain, or even wearing aftershave. Men should be men. Go out, earn some money, come back and look after my children."
The 'Air Balloon' hitmaker admits her life has changed since she had children so she never brings her problems home with her and claims she is good at dealing with the fallout from her numerous Twitter spats, with recent war of words involving Katie Hopkins and Azealia Banks.
Lily said: "My husband doesn't do social networking. Of course he gets p****ed off, but he knows I can handle it, so it's not something we bring to the dinner table ...
"My drive last time I released an album was very different. I wasn't in a relationship, I didn't have any responsibilities in terms of children, I was reasonably young, I didn't have a mortgage.
"I mainly wanted to go to festivals and see who would be interested in sleeping with me, and how drunk I could get. That was my drive. It's very different now. I get home now and I'm very thankful if I've got an hour and a half with the kids before they go to bed. And no one wants to hear me come in and go, 'God, I hate Katie Hopkins'."

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