Happy Videos brings Pharrell Williams to tears! Interview on Oprah Prime

Tune in for an all-new episode of Oprah Prime on Sunday at 9/8c. Subscribe to OWN: After numerous attempts to write a particular song for Despicable Me 2, Pharrell Williams says he still couldn't find the right sound. Watch as he explains how "Happy" only began to take shape when he thought he was out of ideas. Plus, Pharrell reveals why he likes to write in the shower. (There are scientific reasons.) Visit our channel for more videos: www