iTunes sells 10 Billionth Song Ravi Somaiya · 02/26/10 08:40AM It came, it saw, it killed the CD. Proof it's no longer revolutionary, but heading towards ubiquity? The 10 billionth purchase came when "71-year-old Louie Sulcer of Woodstock, Ga., bought "Guess Things Happen That Way" by Johnny Cash." [ABC]