Grammy award-winning musician Pharrell Williams will soon be known as an Author. 

Putnam Books for young readers have announced that Pharrell Williams has signed up for four picture books, starting with a celebration of childhood inspired by his hit song Happy.

The publisher has planned a first print run of 250,000 copies of Happy, which will be published on 22 September, and will feature photographs of children from around the world “celebrating what it means to be happy”.