After being available for three months as a pay-what-you-want MP3 download, Radiohead's In Rainbows album has topped the charts in the U.S., Canada, France, Japan, and Ireland in CD and vinyl formats.
Read more about it at "Radiohead Finds Sales, Even After Downloads," "Radiohead's 'Rainbows' Hits No. 1," and "Radiohead's Web Album No 1 in US."