Pharrell and Oprah Winfrey dance to "Happy" on the next episode of "Oprah Prime."

In two previews released via OWN this week, Pharrell and Oprah dance and talk about everything from the meteoric success of "Happy" to the relationship he has with his wife, Helen Williams.

"He's the man making the entire world happy," Oprah says in one of the clips below.

"Oprah Prime," featuring Pharrell Williams, airs this Sunday, April 13 at 9 p.m. on OWN.