'Idol's' Boogie Back In Time

What’s got David Cook, Syesha Mercado, Brooke White and the rest of the “American Idol” gang in polyester?

The finalists donned the synthetic duds and wigs for a new promotional photo for their upcoming “American Idols” Live Tour 2008.

The group dressed up for a halftime Guitar Hero World Tour rockumentary, which screens during the trek.

As previously reported on AccessHollywood.com, the “Idol” tour kicks off July 1 in Glendale, Arizona.

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