Michael Jackson performs in concert in 1986.Kevin Mazur/WireImage
These are the 20 highest-selling R&B artists of all time based on album sales, according to the Recording Industry Association of America. Michael Jackson tops the list with 89 million records sold in the US. Luther Vandross, Alicia Keys, and Boyz II Men also feature. 20. The WeekndThe Weeknd.Getty/Axelle/Bauer-GriffinAlbums sold: 18.5 millionAs well as being one of the highest s…