The arrival of the guests/Some new friends met up with Yuna and her friends

Here is how the the Halloween Nightmare Night Ceremony begins in The Wrath of Oogie Boogie.

Just as the Halloween Nightmare Night Ceremony begins, some guest arrived for the occasion.

Hiro: The time has come for the Halloween Nightmare Night Ceremony, we hope you all have a very splendid night on this occasion!

Princess Luna: And now without further ado, please welcome the Pumpkin King and Queen, (with louder voice) Jack and Sally Skellington!

Princess Yuna: Wow, Mama. Nice loud voice.

Princess Luna: Thank you, Sweetie.

Jack Skellington: Greetings, Friends!

Then, Lock, Shock, and Barrel, Dr. Finkelstein, Jewel, and the Mayor of Halloween Town came up as well.

Lock: Hello there.