As for her reveal to the public, in the episode it could have happened like that:



I'm here to show you who I am

Threw off the veil, it's finally time

There's more to me than glitz and glam, oh-whoa

And now I feel my stars align



For I had believed what I was sold

I did all the things that I was told

But all that has changed, and now I'm bold

'Cause I know



*willingly transforms into her true form*



That I am just a Siren

I make mistakes from time to time

But now I know the real me

And put my heart out on the line