Before revision: Pony-based videos of "Weird Al" Yankovic's songs that Yankovic had highlighted in his Twitter feed led to discussions between the musician and the show directors, and eventually guest appearances in the show in the fourth season episode "Pinkie Pride" and the ninth season episde "The Last Laugh".
After revision: Pony-based videos of "Weird Al" Yankovic's songs that Yankovic had highlighted in his Twitter feed led to discussions between the musician and the show directors, and eventually guest appearances in the show in the fourth season episode "Pinkie Pride" and the ninth season episode "The Last Laugh".