Here in Saint-Petersburg, we had our little BronyCon too =D And this is our personal mega-band "BronyKoni" (I dunno, it can be roughly translated as "Brony Stallions" or somesuch, lol).
Jokes aside, they were fantastic, I enjoyed their impromptu performance very much. And each one of them is a really cool guy. I'm proud to be friends with them ^_^