The Koala Brothers/Smile HD

Version 1

 * Mitzi as Twilight Sparkle
 * Josie as Fluttershy
 * Alice as Applejack
 * Penny as Pinkie Pie
 * Lolly as Rarity
 * Tweak or Dashi (from Octonauts) as Rainbow Dash

Version 2 (Male Version)

 * Frank as Twilight Sparkle
 * Buster as Rarity
 * Ned as Fluttershy
 * Archie as Pinkie Pie
 * George as Applejack
 * Sammy as Rainbow Dash