The "Happy" singer will play himself in an episode titled "Walking Big & Tall." According to Entertainment Weekly, the show will illustrate the true story of a Milwaukee TV station that, in the 1980s, hired a composer to write a city pride anthem.

According to Simpsons executive producer Al Jean, Pharrell will make his star appearance after the city finds out that the composer they've hired has composed the same song for multiple cities. Pharrell will appear and save the day, when he "offers to write a new anthem for the town."