Phineas and Ferb nail polish/C is for Cookie (from Sesame Street)

Cast

 * I Know What We're Gonna Blue Today! as Cookie Monster

Lyrics
I Know What We're Gonna Blue Today!: Now what starts with the letter C? Cookie starts with C Let's think of other things That starts with C Oh, who cares about the other things?

C is for cookie, that's good enough for me C is for cookie, that's good enough for me C is for cookie, that's good enough for me Oh, cookie, cookie, cookie starts with C

C is for cookie, that's good enough for me C is for cookie, that's good enough for me C is for cookie, that's good enough for me Oh, cookie, cookie, cookie starts with C

Hey you know what? A round cookie with one bite out of it Looks like a C A round donut with one bite out of it Also looks like a C But it is not as good as a cookie Oh and the moon sometimes looks like a C But you can't eat that, so ...

C is for cookie, that's good enough for me, yeah! C is for cookie, that's good enough for me C is for cookie, that's good enough for me Oh, cookie, cookie, cookie starts with C, yeah! Cookie, cookie, cookie starts with C, oh boy! Cookie, cookie, cookie starts with C!

(I Know What We're Gonna Blue Today! eats the cookie) Umm-umm-umm-umm-umm