Not suprisingly, the leader -- by far -- is front-runner Adam Lambert, who holds six of the top 10 spots in the Idol chart this season. The haunting "Mad World"-- the song that got Simon Cowell on his feet for a rare standing ovation -- is the No. 1-selling song so far this year, the iTunes site showed.
But right behind Lambert is Allen, who has three performance downloads on the secret chart. Gokey has just one, his version of "Endless Love" at No. 9.
THE spot for your favorite fan theories and the best Netflix recs. Learn more