Imagine if Sweetie Belle, Apple Bloom, and Scootaloo tried to get their cutie marks by playing a string trio. The result might sound something like this awesome cover by Gaz. It's a string trio (that's bass, cello, and violin, if you're wondering) version of the Cutie Mark Crusaders Theme, and it's super impressive.
Listen to the song here. Everypony Sings guarantees that if you play this song in the background, it will make whatever you're doing at least 20% cooler. Well done, Gaz! You can find Gaz on Twitter @Mastersparking.