I know that the answer to the question "What profession would describe Marc Anthony and Johnny Mathis?" 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?
The answer to this question is:
singers