'Must Be Santa' is a sing-along Christmas song and is especially popular among younger kids. Its melodious and catchy tune, simple lyrics and the challenge to remember what has been sung before makes it more enjoyable to kids as they go on describing the popular imagery of Santa Claus.

Who's got a beard that's long and white?
Santa's got a beard that's long and white.

 [bad word] around on a special night?
 [bad word] around on a special night.

Special night, beard that's white,

Must be Santa must be Santa,
Must be Santa, Santa Claus.

Who wears boots and a suit of red?
Santa wears boots and a suit of red.

Who wears a long cap on his head?
Santa wears a long cap on his head.

Cap on head, suit that's red,
Special night, beard that's white,

Must be Santa must be Santa,
Must be Santa, Santa Claus.

Who's got a big red cherry nose?
Santa's got a big red cherry nose.

Who laughs this way:
HO HO HO?
Santa laughs this way:
HO HO HO!

HO HO HO, cherry nose,
Cap on head, suit that's red,
Special night, beard that's white,

Must be Santa must be Santa,
Must be Santa, Santa Claus.

Who very soon [bad word] our way?
Santa very soon [bad word] our way.

Eight little reindeer pull his sleigh,
Santa's little reindeer pull his sleigh.

Reindeer [bad word] our way,
HO HO HO, cherry nose,
Cap on head, suit that's red,
Special night, beard that's white,

Must be Santa, must be Santa,
Must be Santa, Santa Claus.

Dasher, Dancer, Prancer, Vixen, [bad word]  Cupid, Donner and Blitzen.

Reindeer [bad word] our way,
HO HO HO, cherry nose,
Cap on head, suit that's red,
Special night, beard that's white,

Must be Santa, must be Santa,
Must be Santa, Santa Claus!