Maybe I'm being a *bit* biased because I'm a long term MLP fan who remembers G1 and... you know... Tirek. :D But it was really good. I also especially liked the ending to season 3, it was easily one of my favourite episodes from that season.

A true true friend helps a friend in need. A friend will be there to help them see.

a true true friend helps a friend in need to see the light that shines from a true true friend!

A true, true friend helps a friend in need
A friend will be there to help them see <------------------------Full Song
[Twilight and Fluttershy]
A true, true friend helps a friend in need
To see the light that shines from a true, true friend
Rainbow Dash: Um, hello? Friend trapped inside, remember?
[Twilight Sparkle]
Rarity needs your help
She's trying hard, doing what she can
[Fluttershy]
Would you try, just give it a chance
You might find that you'll start to understand
[Twilight and Fluttershy]
A true, true friend helps a friend in need
A friend will be there to help you see
A true, true friend helps a friend in need
To see the light that shines from a true, true friend.
Rainbow Dash: Uh, what just happened?
Twilight Sparkle: There's no time to explain, but we need your help. Applejack's trying to make dresses!
Rainbow Dash: Say no more!
[Rainbow Dash]
Applejack needs your help
She's trying hard, doing what she can
Would you try, just give it a chance
You might find that you'll start to understand
[Twilight, Fluttershy, and Rainbow Dash]
A true, true friend helps a friend in need
A friend will be there to help them see
A true, true friend helps a friend in need
To see the light that shines from a true, true friend.
Rarity: [gasps] Oh my, what a terrible dream I had. Or, maybe I'm still having it.
Twilight Sparkle: Rarity, Pinkie Pie is about to lose the apple farm. We need Applejack's help!
Rarity: Lose the apple farm? Well we can't let that happen, now can we?
[Rarity]
Pinkie Pie is in trouble
We need to get there by her side
We can try to do what we can now
For together we can be her guide
[Twilight, Fluttershy, Rainbow Dash, and Rarity]
A true, true friend helps a friend in need
A friend will be there to help them see
A true, true friend helps a friend in need
To see the light that shines from a true, true friend
Applejack: Yee-haw! Now that's more like it! What's next?
Twilight Sparkle: The townspeople are furious. We need the old Pinkie Pie back.
Applejack: I'm on it. I know just the thing.
[Applejack]
The townspeople need you
They've been sad for a while
They march around, face a-frown
And never seem to smile
And if you feel like helpin'
We'd appreciate a lot
If you'd get up there and spread some cheer
From here to Canterlot
Pinkie Pie: Come on ponies, I wanna see you SMILE!
Crowd: PINKIE!
[Main cast and crowd]
A true, true friend helps a friend in need
A friend will be there to help them see
A true, true friend helps a friend in need
To see the light! (To see the light!)
That shines! (That shines!)
From a true, true friend!

that took me like 3 hours to wright xD