I had some trepidation about working with someone else, especially a family member. You don't want work to affect your personal relationship.

'I Know You Care' is really personal and fragile for me. For me, it's about losing a family member and also about a breakup. It's about this idea of losing someone for good.

I think 'Tattoo's a song that can go so many different ways. Some people think of it as a break-up song, but, for me, it's about somebody who comes into your life and really touches you - be they a friend, a family member or someone you're in a relationship with.

Losing a family member is extremely difficult for anyone to take. But the normal reaction is to want to get back to your work as soon as you can.

I always want to have a personal relationship with everybody that works for me.

I know Bo Xilai well. But our relationship was based on our work; we didn't have a personal relationship.