One Direction have sold a fair few records (and DVDs) in the past year.
If we're being specific about the whole thing, the band have totted up 12m sales since last September, which is quite an impressive 'feat' really isn't it.
The singers of song were 'honoured' with some special disc thing last night to celebrate the news (as seen here) with frontman Liam saying some stock phrase about being "obviously ecstatic and humbled by our award" etc and so on.
Just think of all the chinos they will buy with that money.