Simplify the following text for a Grade 8 native English-speaking person.
Original: Galina Pavlovna Vishnevskaya ( born 25 October 1926 ) is a Russian soprano opera singer and recitalist who was named a People 's Artist of the USSR in 1966 .
Simplified: Galina Vishnevskaya ( born Leningrad , 25 October , 1926 ) is a well-known opera singer and recitalist .