Stephen Hagan

Actor schmactor, www.stephenhagan.co.uk

Now I've been auditioning for various projects in London for over five years now and have had my share of "interesting" auditions. (The most interesting being standing completely naked on a West End stage while four people checked that my anatomy was right for the 'part'. That's for another blog).

Dr Raj Persaud and Helina Hakkanen-Nyholm

Consultant Psychiatrist and Emeritus Visiting Gresham Professor for Public Understanding of Psychiatry

A celebrity's public persona and their body of work remains most prominent in the jury's psyche. The jury then makes a decision based on their judgement of character from previous flattering portrayals in the media.

Caroline Frost

Entertainment Editor, Huffington Post UK

On the face of it, she would appear to have enjoyed revenge against the man who beat her on a dish served cool, collected and lucrative... except... this role model to millions of young impressionable girls has gone and taken Chris Brown back. What's a fan to do?

Chanel de Yong

Humorous writer/ Observer

All in all, London Fashion Week is a circus of extravagant looks, with each caricature out to compete against the other. Next time you decide to make a trip, it may be a thought to check out your local fancy dress shop first. Who knows, you may decide to dress up as a zebra!

Richard Parks

Former Welsh international rugby player turned explorer, mountaineer and adventurer

I was immensely proud that my challenge raised funds in aid of Marie Curie Cancer Care. They're are an awesome charity and as many people at some point in their lives are affected by cancer I think people were not only inspired by my efforts during the expedition but really believed in the cause I was trying to help along the way.

Sophie Bradley

PR Manager for International NGO CAFOD

Damned if they do, damned if they don't. For the last seven years I have worked with celebrities, their agents, publicists (and in some cases their mums) to coordinate their support of charitable projects. And while no-one invites condemnation like a wealthy celebrity who does nothing for charity, those who do contribute open themselves up to a whole other raft of criticism. The big difference is once you're famous, you'll be judged. Every move a celebrity makes is up for scrutiny, including the issues that concern them; their politics; their faith; and the charities they choose to support.

Kimberley Walsh

1/5 of Girls Aloud; singer and performer

Promo is a funny old game, you do feel slightly odd and awkward talking about yourself all the time - I guess that's just a British trait though! But you know you need to push your album so you sit there, answer the questions and try and keep the enthusiasm levels up! It's fun too and you get to meet and catch up with all the journalists who are, for the most part, really supportive. The past week has been super busy though and I've been up and down the country doing promo. Here is just a little snapshot...

Helen Lederer

Actress, comedian, writer, presenter, wine commentator and after dinner speaker.

Why was the gathering of 'slebs' in a diving contest so utterly appalling? And why did the citing of Tom Daley doing 'TV work' like Gary and Sue cause such a negation of British sportsmanship? We like to be united in our hatred of TV. But what we don't realise is we are dumbing down our own reputations.

Planet Ivy

News for the bored generation

Around five years ago, I wished death upon Sir Paul McCartney. This wasn't a personal vendetta. It wasn't pent up rage or resentment that John and George perished before he. I wasn't a deranged Rolling Stones fan bemoaning the injustices of Beatles pre-eminence. In fact, it came from a place of compassion.

Frances Ruffelle

Tony Award winning actress and recording artist

I am about to embark on one of the most challenging roles of my life: playing Edith Piaf. I have been learning nine of Edith Piaf's songs in French and languages have never been my forte. So the French is a challenge, let alone the fact that my role is in every scene.

Rankin

Photographer, filmmaker and founder of Collabor8te and The Hunger

Ever since his mixtapes and homemade music videos started appearing on the internet A$AP Rocky has been a force to be reckoned with in, not just hip hop, but the music scene as a whole. The 24-year-old rapper from Harlem, New York is not your average rapper.

Sarah Tetteh

Showbiz and entertainment contributor and editor, plus new mum!

If you're hot, you're hot. It doesn't matter about your colour, ethnicity or race. But all hell has broken loose this week after US men's magazine GQ has come under fire for its '100 sexiest women of the century' list, which categorises some women according to their race and ignores the heritage of others.

Mette Poynton

Founder of www.TheOnlineMagazines.co.uk

We are ALL flawed and this is what we should remember when we jump on to our high horses and pass judgment on others.

Lulu

Singer, songwriter and performer

There's so much music now that it's pretty impossible to hear all of it - but that doesn't stop me from trying. As we transition into 2013 and leave 2012 behind, I'll be taking much of the music from the last year with me.

Sarah Tetteh

Showbiz and entertainment contributor and editor, plus new mum!

The new baby, whose 'cousin' will be Beyonce and Jay-Z's nipper Blue Ivy, and will have Aunty Rihanna come over to babysit in their $11million mansion, will overtake the Suris and Shilohs as the new billion dollar babies, buying their parents at least another 18 years in the public eye.

Kerry Katona

Singer, actress and TV personality

I've been on the receiving end of a lot of stick because I've done an advert for a payday loan company. I think a lot to do with all this kerfuffle is that controversy seems to follow me around wherever I go, and I'm sure the irony of me giving out financial advice isn't lost on anyone who knows even a little bit about me and my life. I was made bankrupt, had my house repossessed and made some terrible decisions with money. All I would say is if you get a loan like that make sure you pay it back on time - there's nothing wrong with that!