==EDIT REQUEST: need SOURCE for Rihanna having more sales(80mill) than Beyonce(75mill)==  

 I don't have a conflict of interest, I don't know why the template is saying that. 

 Rihanna is listed here with sales of 80mill, but the source given is german(mtv.de). How do we know what the webpage says? 
 Is 80mill her sales of whole entire full album sales or is it total sales (whole cds, plus singles). Ri has been out since 2005,for 6yrs. Her best selling cd was 2007's GGGB. Ri sells alot of singles but not albums. So please give a source for her having 80mill sales. I don't believe Ri has sold more than Beyonce. Beyonce's solo car began in 2003, so 8yrs now. She clearly sells whole albums consistently, not just singles. Bey's sales are listed as 75mill. Thanks.