  == PLEASE READ BEFORE EDITING or DELETING THIS ARTICLE ==  I figured out these sales totals by devising an equation to work out worldwide sales figures based on RIAA official US sales figures. Only Elvis Presley, The Beatles and Michael Jackson are official worlwide sales figures made public by these artists record companies. This is the most accurate list possible and has been approved by music buffs and people in the industry. Don't go changing this list. I encourage people to add to it and turn the top 10 into a top 50, but do not change the sales figures of these artists allready on the list unless you have a better source. In that case, be my guest.