I couldn't match any of these up with anything, so have a mixed media post!
First off is a typography PMV based on Owl City starring Pinkie Pie, second we have a recording of that Fallout Equestria radio play from the other day, and in the last slot, a short SFM video dedicated to bat ponies. Get them all below !
1.) Pinkie Pie (Typography, Owl City - Fireflies)
2.) Fallout: Equestria - The Radio Play (Season 1, Episode 1)
3.) [SFM Ponies] Midnight
