(SLOW)
Person 2: As long as
Person 3: There's Christmas
Person 1: I truely
Person 3: Believe
Person 1: Hope is the greatest ("greatest" is echoed by Persons 2 and 3)
Person 1: Thing I've ever seen

(Snap 1-2-ready-begin)

(FAST)
Person 1: As long as there is Christmas
Person 2: I truely believe (echoed by person 3)
Person 2: Hope is the greatest
Person 3: Thing I've ever seen

Person 2: Oo-hoo-hoo
Person 3: Oo-hoo-hoo
Person 1: Oo-hoo Woo-hoo-hoo-oo-hoo (followed/echoed by persons 2 and 3)