My Little Pony: Friendship Is Magic Season 8 Episode 18
Pinkie Pie has a new hobby that she absolutely loves – playing the Zenithrash. But when her friends discourage her from playing due to her lack of skill, it causes a series of events leading to Pinkie Pie possibly leaving Ponyville forever!
Episode Title: Yakity-Sax
Air Date: 2018-08-25