What happens when an athletic pegasus pony performs her first sonic rainboom?  Watch this video and find out...

Dedicated to Ashleigh Ball, for giving us an awesome performance as our favorite athletic pegasus pony Rainbow Dash

Special thanks to Christopher Bouchard and skelletonking2 for supplying the clips and audio

I don't own any of the rights to My Little Pony: Friendship Is Magic or Team Fortress 2.  My Little Pony is owned by Hasbro Studios/DHX Media and Team Fortress 2 is owned by Valve Corporation.