Imogen Heap

Once I actually get in the studio and I start working, I'm fine, but it's just getting there and these hours of torment with myself and self doubt, thinking 'I'm useless' and 'Who am I, conning myself into thinking I can do it again.'

I feel like I've grown up a bit. I'm a bit more confident, and I've been reading more, and I've had a little more time to myself. I went on this writing trip to gather my thoughts about where and who I am in this world, and why we're all here.

On YouTube you can tell what countries are watching and I've definitely noted a strong Australian following. You can plan your tours around where the love is on Twitter and YouTube - before, you couldn't tell.

YouTube was really good for building a kind of core, loyal fanbase. I didn't want to be a YouTube artist as such. I mean, there are people who are able to release albums and live off YouTube, but I felt - and not in an arrogant way - that I could be commercial and credible if I really put my mind to it.