The 41-year-old singer will write a series of picture books based on the No. 1 single for Putnam of Penguin Books. The first of four works will be published Sept. 22, and include pictures of children around the world celebrating what makes them happy.
"I'm humbled by the global success of 'Happy,' but especially in awe of the song's young fans," Williams said in a statement. "My collaboration with Penguin allows me to continue a dialogue with these children in a new, fresh way. We're both committed to feeding the curiosity of young minds with ima...
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