I think all those rules are boring. About what people can and can't wear. Surely everyone should be able to wear whatever they like?

I'm terribly attention-seeking. It's very different once you get all this attention, though. Because then you want to control it. And you can't exactly.

I've done panel shows, which I enjoy, and on those you're recording half-an-hour of TV and sometimes they film for two hours. But with 'Britain's Got Talent,' you're on camera for eight hours, with a large theatre audience watching - and in between you're being filmed for ITV2 as you eat your lunch.

When you are doing endurance swimming you just need to take in as many carbs as possible to put on as much weight as you can. Basically you can eat whatever you want, which can be quite fun. Everything is guilt-free.

I've noticed that once you leave London you do kind of become a bit more famous. People in London are a bit too cool for school. It's not so unusual to see someone from London in the street. But outside of London people are a bit more excited to see you and come out and support you.

I can't see why anyone would want to be in politics because you get so much criticism.

I've just swum the length of the Thames. I feel quite tired.