Tuesday's iTunes theme -- which included all songs that have charted digitally -- separated the marketable "American Idol" contestants from ones who have yet to find a musical identity.
Finalists Kris Allen, Danny Gokey and Adam Lambert delivered, boasting performances that judges suggested could be singles off contemporary albums. Lambert rocked out with "Play that Funky Music" by Wild Cherry.
Other members of the nine finalists failed to meet those expectations. R&B belter Lil Rounds continued to suffer, choosing Celine Dion's "I Surrender" when she should have opted for a Beyonce tune. And while Scott MacIntyre served up his best vocals of the season, his decision to sing Billy Joel's "Just the Way You Are" didn't enhance his marketability.
Get a full recap at the Ledger's official "American Idol" blog.
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