In reply to Theman.

No The Beatles, Madonna, Mariah, Janet, Stevie Wonder, Janet, and Michael Jackson all share being in the top 10 artists list of all time. Each one of those artists offer something different and unique the others do not possess so it makes since from a creativity and sales points of view. There is no one artist that appeals to all people. Rihanna did not make top 10.

http://www.billboard.com/charts/greatest-hot-100-artists