I used to live in a gap jumper, tracksuit bottoms and a fake flower in my hair. Shocking.

The only thing I want to be defined by is my music and personality.

I love cleaning, weird but true. It really relaxes me.

My attitude goes back to my childhood. I used to audition for theatrical roles, and you can’t stand out in a room full of ambitious eight-year-old girls by acting the wallflower. I realised then that...

I’d hate it if everyone in the world liked me, my music and what I wore. It’d make it boring, and I wouldn’t have anything to work towards. It’s not to everyone’s taste, but I...

My style is ghetto chic. I love tacky jewelry, mega heels, high-waisted shorts, catsuits.

If I’m on a bus and someone makes my blood boil, I’ll pocket those emotions and put them in a song.

There are a lot of people holding on to the old Jessie J – whatever that means – but I think there’s a lot more people realizing what I’m about. I think people like it.

I was obsessed with the Spice Girls! I always wanted to be Sporty. Or Posh, but I wasn’t pretty enough.

I can play the air guitar really, really well.

I also surround myself with people who make me laugh. If I’m not laughing, it upsets my day.

The way I look at it, a footballer wouldn’t play in flip-flops or dip their feet in acid and then expect to get to David Beckham’s level. My voice is my living, so I’ll be...

I won’t lie – when you’re first bringing out music and you want people to notice, you probably overdo it, especially as a girl.

I’m not a model, I’m an artist. In one of my videos, I’m doing this shot of me with no make-up on where I’ve just woken up, and I don’t think a lot of people...

I’m glad I was faced with different cultures when I was growing up because I wasn’t fazed by it. It has been a huge benefit to me; I feel comfortable wherever I go.

When I look back, I can see why people thought I was aggressive. My first single, ‘Do It Like A Dude,’ resulted in a lot of misconceptions about me. I’m confident – but I’m not...

I have always been the first on the dance floor. Before fame, people thought it made me a good laugh; now, people point and call me an attention seeker! I’m very aware of the way...

I like stripper shoes. I like being tall because I’m claustrophobic.

You should never, ever apologize for anything that makes you happy.

I always imagine the world and myself above it and how minute one negative person’s voice is in comparison to the amount of people that are in the world.

I’ve been in dance schools since I was four. I went to the Brit school. I did adverts and plays.

I’m so happy people are seeing the eclectic side of me. I’m really honored to be able to push my voice into different sounds. Otherwise it all gets a bit samey same.

And that’s the kind of thing people think, you know, that if you sign up to be a singer-songwriter you know how to deal with people setting up hate websites, or people being obsessed with...

I wasn’t always someone who was talented. It was more that I was loud and loved a challenge.

The best gift a fan could give me is undeniable support.

Do what makes you feel good. Remind yourself of what you’re good at and make sure you do that.

I had knockback after knockback before I got anywhere. After I got my first record deal I thought that was it, then Gut Records went into liquidation. I was 20. I had no idea what...

I’d love to have a fashion range; I’ve been dressed by the amazing Vivienne Westwood, and fashion is something I’m a huge fan of.

When I was 10 or 11 people started saying there was something special about my voice. But when I was 15 or 16 is when I really thought my hobby could become my career.

My style is constantly evolving. Style has been something that I think has been the hardest thing for me to come to terms with.

I’m an artist, but I’m also a businesswoman, and sometimes you have to play hard.

You know, as a woman, it is tough to get to the top – like to get to that respected level in this industry – in any industry, I think.

‘Just Do It’ is exactly what you need to hear when you’re in a moment of doubt. When you’re struggling, especially with sport… just do it. Stop talking about it, stop complaining about the cellulite,...

Look after yourself; remember that you only consist of your being, so make the best of what you have and look after it. Put good things into your body; eat well.

Whoopie doo guys, yes, I’ve dated girls and I’ve dated boys – get over it.

I am a dork in disguise; I love doing stupid stuff.

I do my own make-up a lot of the time, and I’m very involved in what I wear.

I’m the most un-diva-ish person you’ll meet. I’m never rude to people and I am always on time.

I’m so hard on myself that when I’m in the studio, I’ll write 10 songs and only use one. So those nine songs that are left over, I always think, ‘Where could these go? Who...

I might put a nicer pair of heels on and a cooler outfit, but I’m still that naughty girl who likes a slice of cheesecake on my day off.

Some of the stage outfits I’ve got are ridiculous. I’ll lay out clothes to pack, and it’ll look like Polly Pocket clothing – because it’s all stretchy, it’s tiny. I don’t need a case when...

I think everybody has a moment in their career where you have to test whether it was right or wrong. We’ve all been there. I’ve looked back at performances of my own, where only you...

But I love singing live. Nothing beats the feeling of going out on stage and going, ‘I can really sing.’

I see my music as Emotional Therapeutic Pop music that bleeds into loads of different genres.

I think the best way to have confidence is not to allow everyone else’s insecurities to be your own.

I’ve grown up a lot, and I’ve realized that what I need to make myself happy is the people around you.

As an artist, I try and be controversial, and I have been a bit offensive at times. I have a view on the burka, and I’m sure a few of the Muslim girls and their...

It’s really important to me that my niece and nephews can come and see my show, as can my grandad and nan. I love spending time with my family, and music has always bonded us.

The message I want to give my fans is, always have a way to pull yourself out of the dark place. Don’t sit and cry about it. Have your moment, and then get over it.

I am a very honest person, and I can only say there are moments in my life where I really did think I was being me in the sense of my morals and beliefs and...