Lazy AF, yes, but it's been 10+ years and it took until NOW for someone to make this, or at least to make it and not have it nuked off The Internet.

See also other ponified memes of the era:
Pony Paffendorf by Outroller /watch?v=Z4O8iHeqpo0
MLP Caramelldansen 26 Ponies! by Avellar3000 /watch?v=FbmlhaVoSUc

Audio is Caipirinha by Carinho, sped up.
Visuals are Pony Caipirinha by TomDanTheRock https://www.deviantart.com/tomdantherock (taken down, mirror here https://ponerpics.org/115795). Background by me.
Inspired by scoutd6's video Capirinha /watch?v=488YxXFIpz8

mlp, fim, my little pony friendship is magic, 2008, meme, pinkie pie, rainbow dash.