J. Lo to Sing on 'American Idol'

J.lo is slated to sing on "American Idol," and she'll be immune from Simon Cowell's barbs.

Jennifer Lopez will perform on the show April 11.

The singer/actress will join a growing list of top music stars who have turned up on the show to sing, including Shakira, Prince and Rascal Flatts.

It was not clear yesterday if Lopez's husband and occasional collaborator, Marc Anthony, will appear on "Idol" with her.

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