Trixie magically showed off her bad luck at trying to do a show following her humiliation in Ponyville, and it wasn't pretty. But why do some of those ponies we see in those scenes look familiar? Bon Bon remembers. But had to happen, had to happen, right?
Art by Navitaserussirus used with permission. http://navitaserussirus.deviantart.com/art/Page-117-421261410