Over a billion digital full tracks have been sold in 2008, up 28% over 2007, according to Nielsen SoundScan figures released today.

Through Dec. 14, 1,001,000,000 digital tracks were sold in the United
States. Nielsen SoundScan projects the year will end with 1,040,000,000
tracks sold.

Seventeen percent of digital track sales this year have come from the top
200-selling tracks.

Leona Lewis' "Bleeding Love" was the highest-selling digital track in 2008, with 3.3 million sold.