Guess, who?

[Sergy]

So girls, it's my turn
And I want to get your answer on follow question - who did sing "Show must go on"?

... Inside my heart is breaking
My make-up may be flaking
But my smile still stays on...

... But inside in the dark I'm aching to be free...

... My soul is painted like the wings of butterflies
Fairytales of yesterday will grow but never die...

It is my favourite lines of the song.
By the way I find contradiction: if heroes soul is painted as wings of butterflies how he can aching to be free inside in the dark?