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

During my stage shows, I am so energetic. It's constant! I just don't stand still. I actually got given a mic stand from my team to say 'Just calm down. Stand still for at least two songs.' But now I just pick it up and walk around with it.

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

I'm not afraid to say I'm very comfortable with who I am and I love who I love.

I started to look like a cartoon character with the fringe and the catsuits. Yes, I want to change and mix it up. I want to change my hair, change my style. I want to be allowed to grow.

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 families would have a view of me on stage in next to nothing!

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 that meant. I had a few days to get myself out of that contract or my work would be owned by someone else.

I think confidence is the sexiest thing to have.

And I definitely do that very British thing of, take things with a pinch of salt, stiff upper lip, you know what I mean?

I had an amazing childhood and always loved to sing and dance, but there were moments where I had ups and downs with my health that often tested me as it does many people. I've never hidden the fact that my health was sometimes not on my side, but I've never let it define me or deter me from my dreams.

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 would be comfortable enough to do that. But that's the way I look. This is who I am. Let's enjoy it. Let's just live life to the full while we're all here.

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 tour; I can fit it all in my handbag.

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 couldn't do things half-heartedly.

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.

If I did meet somebody, I would only ever make room for someone that loved me how I deserved to be loved. Until then... I've got my shoes, I've got my album, my dog.

I'm not a natural runner. I'm friends with Ellie Goulding, and she'll be like, 'I've just done a 10K run' and I'm like: 'Why would you do that? How do you just do that?' But I will do that. I will do it.

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.

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 arrogant.

Sometimes you have to be a diva. All the artists I admire from Madonna to Whitney to Mariah have all been called divas. If you are strong, if you have vision, if you are an artist, you have to do what you believe in. And if you get called a diva for it, then so what.

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.

I never stop working when I'm on stage, and that's my fitness.

'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, or that you're not able to run fast enough for the bus... just do it.

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

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

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

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

I have calmed down my look. Is it really necessary to wear all that jewelry and makeup at 7 A.M.? When you're tired, you start to over-compensate by wearing too much bling.

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 you and crying when you touch them, but you don't, and you just have to deal with.

I know I've got the right friends because they understand when they haven't seen me for three months and then when I do see them, it's exactly as it was before.

I'm glad I've had to struggle. It's made me the artist I am now.