The song from My Little Pony Friendship is Magic Season 1 Episode 2 Friendship is Magic (Part 2) Pinkie Pie "Laughter Song"
aka "Face Your Fears" aka "Giggle at the Ghosties"
Thank you Daniel Ingram and the My Little Pony: Friendship is Magic team. :D
[Pinkie Pie]
When I was a little filly and the sun was going down...
Twilight Sparkle: Tell me she's not...
[Pinkie Pie]
The darkness and the shadows, they would always make me frown
Rarity
آی-ویدئو