Extract the answer to the question from the following context. Question: What profession would describe Marc Anthony and Johnny Mathis? Context: 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.
The answer to this question is:
singers