Cook, ’Idol’ cohorts give lukewarm performances

It was a pop culture addict’s dream.

The nation’s largest popularity contest brought its Top 10 elite for three hours of covering other people’s hits, fitting into archetypes and expressing disbelief toward fans’ ardor.

“American Idols Live!” has its moody rocker, its piano-playing sweetheart, its shameless shucking of a new video game during an overlong intermission and its three minutes of compassion.

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