There are many singers that can be named as the most famous singers of all time. You can find the names of these singers from places such as Billboard.
Elizabeth Schwarzkopf, Elizabeth Schumann, Maria Callas, Dawn Upshaw - the list goes on and on.
Michael Jackson
Daddy Yankee and Ricky Martin are two of the most famous Latin American singers. Also, Freddy Fender and Dulce Maria are famous Latin American singers.
Bereket Mengisteab is one of the most famous singers of Eritrean music. Yemane Baria and Alamin Abdeletif are two other famous singers of Eritrean music.
beyonce
Rihanna.
One can find a list of famous actors from the following sources; iMDb's list of most talked actors of 2012, Forbes' Celebrity 100, and listal's American actors and actresses.
To find a list of the more famous folk dances you would have to go by each country or region's dances. Thankfully you can find a list of any region's folk dances online at the Wikipedia website.
Katie, Avery, and Shelby
maria callas
Yes, most of them are Christians.
Britney Spears is the most famous singers ever Michel Jackson is the 2nd best