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The Band Perry will be taking part in tonight's "American Idol" finale.  "The Hollywood Reporter" says the country trio is slated to perform with season 12 hopeful Janelle Arthur, who finished her run on the show in fifth place. 

A number of other stars are also expected to be on hand as the Fox reality show wraps up another year, including former "Idol" finalists Adam Lambert and Jennifer Hudson, former "Idol" judge Jennifer Lopez, Carly Rae Jepsen, and the Four Season's Frankie Valli. 

In addition, "Idol's top two - Kree Harrison and Candice Glover - will each take the stage a few times before they learn who will be taking this year's title. 

The "American Idol" season 12 finale will air on Fox tonight at 8:00 p.m. Eastern. 

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