Cast -
Princess Celestia - Professor Utonium (Sorry if i spelled it wrong)
Twilight Sparkle - Blossom
Fluttershy - Bubbles
Rainbow Dash - Buttercup
Nightmare Moon - Mojo Jojo

My Little Pony belongs to Hasbro and Lauren Faust
The Powerpuff Girls belongs to Cartoon Network, Craig Mccracken and Hanna-Barbera