It was a goof for only a few seconds in the movie during the nap song. :I

@Lefty643  
neither was Luna’s, after her powers came back.

Um, why is surprise an alicorn?
 
I thought she was a pegasus.

Sure I can: Their hair is no where near similar.
 

 
And even if we can’t disprove it, YOU can’t flat out prove it.

….fuck

I…
 
umm….
 
thinks
 
I got nuttin…

……………..…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………  
.……………………fuck.

I can’t disprove it, no…
 
Doesn’t mean it’s true.