Jan20.MLPWeird Al” Yankovic will guest star as Cheese Sandwich and compete with Pinkie Pie for best party planning pony on the February 1 episode of My Little Pony Friendship is Magic. An excited Pinkie Pie plans the best party ever for Rainbow Dash, but Cheese Sandwich will plan another one that will make every pony forget about Pinkie Pie. With Pinkie Pie’s reputation challenged, she won’t go down without an ultimate goof-off showdown. The episode will air on February 1 10:30 a.m. ET/7:30 PT on the Hub Network.