Celebration Song lyrics

Sha la sha la la la la la la
Hey, everybody
What do you say
Sha la sha la la la la la la
Hey, everybody
Today is the day
Sha la sha la la la la la la
To be a celebration
The band is going to play
Sha la sha la la la la la la
Hey, hey
Do what you want
Sha la sha la la la la la la
Hey, hey
{??}
Sha la sha la la la la la la
Be a celebration
Everybody trip out
Sha la sha la la la la la la
Be a celebration
Can't you hear the band call
Sha la sha la la la la la la
Hey