Phantom Tsarevich (Singer AU)

When a young Russian who sings soon finds great fame, quite a few fall in love with the handsome voiced Russian. The only problem is with those who crush on the young man is that no one knows who he is, until The Phantom Tsarevich (Called Tsarevich for short by his fans) announces at one of his concerts that throughout the new songs and performances he shall be leaving hints on who he truly is, may it be through changes in his costume or in the lyrics.