K-I-A-R-A

Howdy there, friend!
We're here today to wish you a happy birthday!
I'm so excited to do this! Rarity told me how fun it can be!
Dash said how important it is for us to greet our friends in the other world! It's an honour!
Focus, girls, remember how we practiced it...
inhale
We wish you all the best on this occasion! May you have lots of happy times and good things come your way!
And we wish you'll be able to do your best for yourself too! And, and...
And stay in good health and high spirits all the time! And believe in yourself and who you are!
An' also we wish you great friendship and to have your nearest an' dearest with you to share in the good and deal with anything bad together!
So on behalf of all Equestria we wish you...
Happy Birthday!
We did it, girls.
Now let's all celebrate! Cue the music, Scoots!

A very good day to you, human. I come to you on your day of birth with greetings... and thanks.
My good subject Pinkie Pie told me she had taken to congratulating some humans on their birthdays, but even she has her limits. So she asked us for a bit of assistance... and for such friends of ponykind, we feel it right to provide it.
It is thanks to people like you that our land of Equestria, our very world, exists like it does. It is your friendship with us that gave us life. For that, we will forever be grateful and cherish you.
And so, allow me to wish you happiness, peace, prosperity and fulfillment! My hope goes with you that you suffer no hardship in the year ahead, but should a challenge befall you, I am certain your courage and skill will see you rise to conquer it!
Now... where is she...
Here, sister!
Fashionably late, I see! But just in time for the greetings to be given.
Right! I'm ready. Three, two, one...
Happy Birthday!
And now... let us commence the royal party.

Haaaaaaappy happy birthday to our good friend today!
Here's a little birthday song with something I must say!
On this day we celebrate having you with us!
Throw a party here for you I'll make sure is a blast!
I wish you only happiness, that your life's full of smiles!
That you and your friends will prevail in any troubling times!
Most of all, I wish for you that you'll have lots of fun!
And share it with all close to you, spread happiness around!
OR ELSE!

So let's get down to business now, there'll be no more delays!
On to the birthday party, celebrate this joyous daaaaay!

 Happy Birthday!  

Yay! We're here, everypony!
Phew, that wasn't long. I told you we could easily make it on hoof!
Speak for yourself, Twi, you didn't have to carry this cake! It's heavy, you know!
Thank you for helping out, Dashie! I couldn't have settled for anything less, after all!
Hi... We're here to... wish you a happy birthday.
You said it! Happy birthday!
And what better way to say "happy birthday" than with a cake?
Why, with a real Apple family apple pie, of course!
With a muffin! Yay!
But these, while pleasant to give, mean little by themselves...
What makes them meaningful are our wishes for you!
Exactly! And we wish for you to have a perfect birthday and a great year ahead of you!
Don't fear any challenges you might face! No matter how bad it may seem, have faith in yourself and keep on being awesome!
And while at it, keep a level head and don't lose sight of what's important! Keep the magic of friendship alive in yourself!
Remember your loved ones and friends, an' don't let little things an' worries get you down!
We hope that you'll find all you seek and be the best you can be!
Don't forget to respect yourself! You're the best at being you, so stay true to what you really are!
And we hope that you'll be at peace with yourself, too... and that the year ahead will be peaceful for you.
And throughout all that, have fun! It isn't fun if you don't have any, after all, and fun it should be!
Just like today! Party on!

Weeee! Today's the day, everypony!
Pinkie, do we have to teleport in like that every time?
Of course, silly! Else it wouldn't be a proper birthday greeting!
Ahem...
Happy birthday!
And it wouldn't be a proper birthday if Ah didn't bring y'all an apple pie, baked by yours truly!
Let us all give you our best wishes on this occasion and wish you a wonderful year!
I hope that you will not run into any trouble this year and that everything will be as good as it can possibly be.
Don't forget that you're awesome! And that we're all your friends! Keep on rockin'!
Always keep the magic of friendship within you. May it bring you as much joy as it brings us!
And don't ever feel like you're useless or unworthy! Only you have what it takes to live your life, so don't let anyone or anything else get you down!
And of course, don't forget to have fun while at it! And speaking of fun...
It's time to party!

I hope you survive today's celebration of your being born.