Image imported from derpibooru
Original Description:

Man, almost 10 years since Rainbow Rocks happened and people questioned the dubious amount of actual rock music in the movie. How time flies…

Anyways, we can’t forget why the Dazzlings were in the EqG world in the first place–Star Swirl the Bearded, as well as the rest of the Pillars of Equestria, banished them there in the first place! So what a twist of irony it is, that after receiving a mysterious gem supposedly infused with Siren magic, Starswirl would find himself taking on the form of one of the very creatures he banished…! It’s quite peculiar, but perhaps he can write a cracking research paper about it!