Well, I'm sure there's some methodology here. But I still just don't get it.
Shania Twain's and Lady Gaga's albums never even reached #1 in the US and Nicklebck's album is 8x Platinum in the US against Rumours' 20x Platinum. Rumours was at #1 forever and still pops up on the charts from time to time. It's still selling (probably) a million copies per year. I don't get it.
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