Christmas toys all over the place   Little Shelby wears a funny smile on his face   Shelby has a secret   And the secret he must share   He wants to tell somebody   So he tells his teddy bear      I saw Mama kissing Santa Claus   Underneath the misteltoe last night   She didn't see me creep   Down the stairs to have a peek   She thought that I was tucked up in my bedroom fast asleep   Then, I saw Mama tickle Santa Claus   Underneath his beard so snowy white   Oh, what a laugh it would have been   If Daddy had only seen   Mama kissing Santa Claus last night      I saw Mama kissing Santa Claus   Underneath the misteltoe last night   She didn't see me creep   Down the stairs to have a peek   She thought that I was tucked up in my bedroom fast asleep   Then, I saw Mama tickle Santa Claus   Underneath his beard so snowy white   Oh, what a laugh it would have been   If Daddy had only seen   Mama kissing Santa Claus last night