Barbra has always been the best selling female artist in the US, she's more of a US thing tho, worldwide both Madonna and Celine leave her in the dust, to the people claiming Madonna sales are inflated, ask yourself why certification exists and to what is used, she's the most certified artist in the UK, worldwide her sales stand at 220+ million albums and 120+ million singles sold, do the math, it's that hard to believe, look at Rihanna's sales how hight they are thanks only to singles sales, facts are facts, certifications don't lie, you will deal with the fact that she's the best selling female artist in the world, it hurts right?