Question #4043: Favorite singers. What nationality are they?

[AskSatanOperator]

Hello. I am fond of singers such as Valery Kipelov, Vadim Samoilov (Agatha Christie group) Alexander Ivanov (Rondo group). But it’s important for me to know exactly what nationality they are, whether I should like them (I definitely really like one of them, I won’t talk about it in order to maintain anonymity...) and listen further. Answer please.
Thank you.