Please answer the following question: I know that the answer to the question "What are two examples of female soft rock/pop singers?" is in "Artists contributing to this format include mainly soft rock/pop singers such as, Andy Williams, Johnny Mathis, Nana Mouskouri, Celine Dion, Julio Iglesias, Frank Sinatra, Barry Manilow, Engelbert Humperdinck, and Marc Anthony.". Can you tell me what it is?
A:
Nana Mouskouri, Celine Dion