|Lyrics By||Craig Gerber|
|Shows||Sofia the First|
|Preceded By||Bigger is Better|
|Followed By||A Recipe For Adventure|
</noinclude>"Who's That?" is a song performed by Princess Vivian, Prince Desmond, and two others during the All Hallow's Eve Costume Contest in the Sofia the First episode "Princess Butterfly".
Vivian and the others play an intro over the dialogue.
Merryweather: Time to judge the costumes!
Flora: It's delightful! Very nice! Oh! Lovely costume, Sofia!
Sofia: Thank you, Miss Flora.
Fauna: Oh, I like that one.
Vivian(singing): Tonight we're really going to jump and shout,
What kind of party were you most into?
What kind of Fable's always after you?
Zandar: James! Has anyone seen James?
Clio: You're gonna win the contest, Sofia. I just know it.
Vivian(singing): Don't turn around, 'cause it might be true.
Who's that creeping up behind you?
Who's that calling to remind you?
Who's that no need to remind you!