You better watch out You better not cry You better not pout I'm telling you why Santa Claus is comin' Santa Claus is comin' He's making a list Checking it twice He's gonna find out who's naughty or nice Santa Claus is comin' Santa Claus is comin' Santa Claus is comin' Santa Claus is comin' He sees you when you're sleeping He knows when you're awake He knows if you've been bad or good So be good for goodness sake He sees you when you're sleeping He knows when you're awake He knows if you've been bad or good So be good for goodness sake With little tin horns and little toy drums Rooty toot toots and rummy tum tums (whatever that is) Santa Claus is comin' Santa Claus is comin' Santa Claus is comin' Santa Claus is comin' Santa Claus is comin' Santa Claus is comin' Santa Claus is comin' Santa Claus is comin'