I've always been really, really aware of my insecurities - really, really aware. I never developed that thick skin that keeps you from letting things get to you.

In this business you have to develop a thick skin, but I'm always going to feel everything. It's my nature.

I've never gotten thick skin. If you close yourself off and you get this protective armor, there is a price you pay with that - of not feeling. And feeling is important when you are a songwriter.

I have a thick skin, but I have a heart.

You have to develop a very thick skin.

I've been booed in Holland and in Uruguay - as a professional footballer, you need to have thick skin and just get used to it.