This is video is not monetized, no money is made from it.
Song used is Rainbow Dash and Scootaloo sing Pegasus Device by PurpleRoselyn.
Link to her channel for the original version(non animated)
https://www.youtube.com/channel/UCJxfqPhWiUD9l_B6CD-PJAg
What does go on in the Secret facility hidden deep within the Weather Factory in Cloudsdale. Who runs in it with sure lethal and deadly secrecy?