>It doesn't matter why. Just pick one from each group:
>
>More than 220m albums sold:
>
>The Beatles

>
>200 to 250m albums sold:
>
>
>ABBA
>
>120 to 200m albums sold:
>

>Bee Gees

>
>100 to 100m albums sold:
>


>Stevie Wonder

>
>80 to 100m albums sold:
>

>Earth, Wind & Fire

>
>75 to 80m albums sold:
>

>Nirvana