(kiss sound) 
Wow! Mommy's kissing 
Santa Claus!
I saw Mommy kissing 
Santa Claus
Underneath the mistletoe last night
She didn't see me creep
Down the stairs to have a peep
She thought that 
I was tucked up
In my bedroom, fast asleep
Then I saw 
Mommy tickle(tickle,tickle,Santa Claus) 
Santa Claus
Underneath his beard so snowy white
Oh, what a laugh it would have been
If Daddy had only seen
Mommy kissing 
Santa Claus last night
He saw Mommy kissing(kissing,kissing) 
Santa Claus
I did! I really did see 
Mommy kissing 
Santa Claus
And I'm gonna tell my 
Dad(bell sound)
Then I saw 
Mommy tickle(tickle,tickle Santa Claus) 
Santa Claus
Underneath his beard so snowy white
Oh, what a laugh it would have been
If Daddy had only seen
Mommy kissing 
Santa Claus last night
Oh, what a laugh it would have been
If Daddy had only seen
Mommy kissing 
Santa Claus last night
I did! I did! 
I really did see 
Mommy kissing 
Santa Claus
You gotta believe me! 
You just gotta believe me!
Come on, fellas, believe me! 
You just gotta believe me!(I told you ,I told you)