What if Mark Knopfler forced you to buy broccoli?
Billboard has printed 70mil in one article, another online source has 43mil.
Either way saleswise, DD is easily in the top 5-10 best selling acts ever to play Coachella. Though I'm curious on figures for Sly Stone and everything Booker T Jones appeared on.
Bands often take the amount of platinum records they have and multiply it by a million even if platinum in the United States and Latvia or 2 different numbers.