Janet Jackson has a different look on 'American Idol'

Janet Jackson is performing "Nothing" on "American Idol" but we're all still abuzz about the great tribute they just put on for Simon Cowell, with all the past winners except for David Cook singing.

She looks great, with short, slicked back hair, bouncing all around the stage. Crowd keeps cheering, you get the feeling, with less than 10 minutes left in the show, that something surprising is about to happen....

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MORE: Read all of our other "American Idol" posts

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