This is Fun!, the fanlisting for “Too Many Pinkie Pies”, the third episode from season 3 of My Little Pony: Friendship is Magic.
What is a fanlisting?
According to TheFanlistings.org:
A fanlisting is simply an online listing of fans of a subject, such as a TV show, actor, or musician, that is created by an individual and open for fans from around the world to join. There are no costs, and the only requirements to join a fanlisting are your name and country. Fanlistings do not have to be large sites (although some are) – they are just a place where you can have your name listed along with other fans of the same subject. TheFanlistings.org is the original (but not only) web directory for fanlistings, dedicated to uniting fans across the globe.
In this case, it’s a listing for “Too Many Pinkie Pies”, the episode where Pinkie can’t work out which friend to hang out with, and clones herself in a magic mirror pool. Naturally wackiness ensues.
You can find more information on the episode at the MLP Wiki.