Reuters reports that Fox's "American Idol" delivered more record-setting numbers Tuesday with the first of this week's two-part finale, surpassing 18 million viewers overall. According to national estimates from Nielsen, "Idol" delivered the network's highest series ratings ever in the Tuesday-at-9 hour among adults 18-49 (9.3 rating, 24 share), adults 18-34 (10.2/29) and total viewers (18.69 million).

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