Written by . Published: February 17 2015
Singer Pharrell Williams has signed a deal to release four children's picture books.
One of the publications will be inspired by the star's smash hit Happy, which featured on the soundtrack for kids movie Despicable Me 2, and the the first book in the series is due for release in September (15), with an initial print run of 250,000 copies.
It will feature images of children from around the globe "celebrating what it means to be happy".