High-Class Pony Meeting in Canterlot

"Sweet Celestia! It seems that all the high-class ponies from all over Equestria are preparing to attend the How I Can Help Make the World Great ceremony while ignoring Celestia's captivity under the hands of these feds, Princess Luna's warnings from the Ponyville Conference, and even panics from many worlds. Do I also have to mention that the Silbervia Conference is coming soon, like the ceremony? Man! It's like singing Kumbaya off-tune while you're in a camp!"

--Su Ji-Hoon, The Upper-Class Ponies

The high-class pony meeting in Canterlot takes place in the Pony Princess Wedding Castle in Canterlot, Equestria. It takes place in two hours before the How I Can Help Make the World Great ceremony was about to start, and that's where the high-class ponies would plan on what will they do with the ceremony in their attendance before the first carriages could arrive.

Princess Celestia's absence (due to captivity by Gerasecia) and Princess Luna's attendance to the Ponyville Conference took advantage for the high-class ponies to plan for their attendance in the ceremony without any guidance of the Equestrian princesses.

All of these attendants would be the guests for the How I Can Help Make the World Great ceremony when it will be started, and it's all part of the Upper Class Meetings.

List of Attendants

 * Amethyst Star
 * Apple Bottoms
 * Apple Fritter
 * Apple Rose
 * Apple Split
 * Aunt Orange
 * Aunt Holiday and Auntie Lofty
 * Auntie Applesauce
 * Autumn Gem
 * Babs Seed
 * Beaude Mane
 * Beauty Brass
 * Berry Preppy
 * Berryshine
 * Big Bucks
 * Black Marble
 * Blossomforth
 * Blue Bobbin
 * Blue Moon
 * Blue Nile
 * Blueberry Curls
 * Bowler Ponies
 * Boy Bullies
 * Bracer Britches
 * Bright Smile
 * Buck Withers
 * Buried Lede
 * Butternut
 * Capper
 * Caramel
 * Carlotta
 * Cayenne
 * Chancellor Neighsay
 * Charity Kindheart
 * Charm
 * Cheerilee
 * Cherry Fizzy
 * Cherry Jubilee
 * Chocolate Sun
 * Cinnamon Chai
 * Claude
 * Clear Sky
 * Cloud Chaser
 * Coco Pommel
 * Comet Tail
 * Cookie Crumble (declined)
 * Coriander Cumin
 * Count Caesar
 * Countess Coloratura
 * Cozy Glow
 * Crescendo
 * Daisy
 * Dance Fever
 * Dandy Grandeur
 * Dane Tee Dove
 * Dapper Pony
 * Dark Moon
 * Dear Darling
 * Derpy Hooves
 * Detective Pony
 * Diamond Cutter
 * Diamond Dogs
 * Diamond Mint
 * Diamond Tiara
 * Dinky Doo
 * Doctor Pony
 * Doctor Whooves
 * Don Neigh
 * Double Diamond
 * Dr. Caballeron
 * Drizzle
 * Dusty Pages
 * Eclair Crème
 * Elbow Grease
 * Ember
 * Evergreen
 * Fancy Pants
 * Fashion Plate
 * Feather Bangs
 * Fire Flare
 * Firelight (declined)
 * Filthy Rich
 * Fine Line
 * Fleur de Lis
 * Flim and Flam
 * Flitter
 * Fluffy Clouds
 * Fond Feather
 * Four Step
 * Frederic Horseshoepin
 * Garble
 * Gilda
 * Gladmare
 * Globe Trotter
 * Golden Delicious
 * Golden Gavel
 * Golden Harvest
 * Granny Smith (declined)
 * Gummy (declined)
 * Gustave le Grand
 * Hard Hat
 * Hoity Toity
 * Homebound Ponies
 * Hondo Flanks (declined)
 * Hoofer Steps
 * Indian Summer
 * Inky Rose
 * Jack Pot (declined)
 * Jeff Letrotski
 * Jesús Pezuña
 * Jet Set
 * Junebug
 * Kerfuffle
 * Kettle Corn
 * Lady Gaval
 * Lemon Hearts
 * Lemony Gem
 * Levon Song
 * Lighthoof
 * Lightning Dust
 * Lilac Ice
 * Lilac Luster
 * Lily Lace
 * Lily Valley
 * Liza Doolots
 * Luckette
 * Lucky Clover
 * Lyra Heartstrings
 * Lyrica Lilac
 * Mare E. Belle
 * Masquerade
 * Maud Pie
 * Meadow Song
 * Merry May
 * Midnight Fun
 * Minuette
 * Mistmane
 * Moon Dancer
 * Mr. Greenhooves
 * Mr. Stripes
 * Mr. Waddle
 * Mrs. Trotsworth
 * Ms. Harshwhinny
 * Ms. Peachbottom
 * Mudbriar
 * Mulia Mild
 * Neon Lights
 * Night Glider
 * Night Light
 * Nightjar
 * Noi
 * Noteworthy
 * Oak Nut
 * Ocellus (declined)
 * Octavia Melody
 * Opalescence (declined)
 * Parasol
 * Parish Nandermane
 * Party Favor (underdressed)
 * Peachy Sweet
 * Perfect Pace
 * Persnickety
 * Photo Finish
 * Picture Frame
 * Piña Colada
 * Pinkie Pie (declined)
 * Pipsqueak
 * Pistachio
 * Plaid Stripes
 * Polo Play
 * Ponet
 * Pretty Vision
 * Prim Hemline
 * Prim Posy
 * Primrose
 * Prince Blueblood
 * Princess Erroria
 * Purple Wave
 * Pursey Pink
 * Queen Chrysalis (secretly)
 * Rainbow Harmony
 * Rainbowshine
 * Randolph
 * Rare Find
 * Rarity (declined)
 * Raspberry Cream
 * Raven Inkwell
 * Regal Candent
 * Roseluck
 * Royal Pin
 * Royal Ribbon
 * Saffron Masala
 * Sapphire Shoals
 * Sassaflash (My Little Pony: Friendship is Magic)
 * Sassy Saddles
 * Savoir Fare
 * Sea Swirl
 * Sealed Scroll
 * Serena
 * Shimmy Shake
 * Shoeshine
 * Shooting Star
 * Silver Frames
 * Silver Script
 * Silver Shill
 * Silver Spoon
 * Sir Pony Moore
 * Snap Shutter and Mane Allgood
 * Soarin
 * Soigne Folio
 * Somnambula
 * Songbird Serenade
 * Spa Ponies
 * Aloe
 * Lotus Blossom
 * Spaceage Sparkle
 * Spoiled Rich
 * Spring Forward
 * Sprinkle Medley
 * Star Bright
 * Star Gazer
 * Starstreak
 * Steeplechase
 * Stella Lashes
 * Stellar Flare (declined)
 * Stinky Bottom
 * Stormy Flare
 * Sunny Daze and Peachy Pie
 * Sunset Shimmer
 * Sunshine Smiles and Moonlight Raven
 * Sunshower Raindrops
 * Surf
 * Suri Polomare
 * Svengallop
 * Swan Song
 * Swanky Hank
 * Sweetie Belle (declined)
 * Sweetie "Bon Bon" Drops
 * Swoon Song
 * Tender Taps
 * Tenderhoof
 * Theodore Donald "Donny" Kerabatsos
 * Toe Tapper
 * Toola Roola and Coconut Cream
 * Torch Song
 * Tree Hugger
 * Trixie Lulamoon (declined)
 * Turf
 * Twilight Velvet
 * Twinkleshine
 * Twist
 * Uncle Orange
 * Upper Crust
 * Valley Trend
 * Vidala Swoon
 * Walter
 * Wind Rider
 * Wind Spirit
 * Wrangler
 * Written Script
 * Yona (declined)
 * Zesty Gourmand
 * Zipporwhill

Trivia

 * Most of supporting characters on the blue background that Rarity revealed in "The Last Problem" would attend the meeting.
 * Most jerks and bullies of My Little Pony: Friendship is Magic  also attend the ceremony.
 * Noi's princess costume, Piña Colada's ladybug costume, Pipsqueak's pirate costume, Sassaflash's Cleopatrot costume are reused for the ceremony.
 * Lyra, Twinkleshine and Minuette would wear bridesmaid dresses while Noteworthy, Caramel, Cherry Fizzy and Meadow Song would wear royal uniforms (all from "A Canterlot Wedding") for the ceremony.
 * All of these guests from the above would be framed for causing the Gerasecia Day parade terrorist attack (as conducted by the Black Changelings).
 * Merry May wears a crown (like this) for the ceremony to make her look fancy.
 * Rainbowshine wears a set of knight armor (like this) for the ceremony to make her look fancy.