Twilight Sparkle's Day Off.

Working non-stop can really take toll on anypony. That's why when Twilight noticed how beautiful the day was, she decided she needs a rest. And nothing will stop her.

Everypony needs a break once in a while. Except for a pony named Twilight Sparkle. After months of grueling work, she finally finds the perfect day for a rest. Nothing, not even her friends, can stop her from taking her day off.

(Oh and go read the sequel...if that's okay with you.)