Pharrell Williams declined the chance to make a conventional documentary about his life because he feared it would be boring

During an appearance on 'The Graham Norton Show', he explained: "I do things that I am curious and enthusiastic about and a documentary about me is not interesting, so I said no at first. Then my very persistent agent said I could do it what any way I wanted.

"When I said I wanted to do it with the best documentary-maker Morgan Neville and for him to tell it anyway he wanted, but in Lego, my agent said, 'No, no, no.' But then everyone said yes.

"This project is the sum of lots of yeses and is what impossible looks like. Whether you are eight or 80 it's not too late to build your dream piece by piece."

Meanwhile, Pharrell recently admitted that 'Piece by Piece' enabled him to reflect on his experiences with a fresh perspective.

The 'Happy' hitmaker told Britain's HELLO! magazine: "Essentially, this movie is my dissertation on my humility. I spent most of my time being arrogant, pompous, incredibly cocky, braggadocious. That was my musical environment and that's what I thought I needed to be.

"When I turned 40, the universe humbled me. I realised that it wasn't all about me and I was part of a bigger equation, and was lucky not to be a word or a sentence, but just to be punctuation.

"The minute that dawns on you, you realise you're so lucky to be in that conversation. Humility is how you get to that place."