As narrated by Rainbow Dash, Pinkie Pie, and Fluttershy of course. ;)

Promo #2: https://www.youtube.com/watch?v=BqTqn7tpvhI
Promo #3: https://www.youtube.com/watch?v=NYSBnLemU5E

Surprised no one else uploaded these, as they premiered during 'A Canterlot Wedding'.