The reign of "Happy" isn't over yet. Pharrell's hit single inspired the world's first 24-hour music video and earned him several awards show performances -- including at the 2015 Grammys -- but there's still more to come.

Skateboard P is now working on a series of children's picture books, the first of which will be called "Happy" and is inspired by the song.

According to Billboard, 250, 000 copies of the book will be published by Putnam on September 22, featuring photos from kids across the world who will be shown "celebrating what it means to be happy."

"Happy" recently earned Grammy Awards for Best Music Video and Best Pop Solo Performance, giving it a lifespan than began in 2013 (when it debuted on the "Despicable Me 2" soundtrack) and will run well in 2015.

Not bad, P.