"The State of Avril Lavigne and Katy Perry on 'American Idol.'" - Zoiks! Online (blog)

MTV UK

"The State of Avril Lavigne and Katy Perry on 'American Idol.'" Zoiks! Online (blog) This Tuesday's guest judges were Avril Lavigne and Katy Perry; and Wednesday night, Neil Patrick Harris and Joe Jonas. Tuesday night was a much more ... Katy Perry and Avril Lavigne on 'American Idol': the claws come out as 'Idol ...New York Daily News IDOL 411: "American Idol" makes Katy Perry feel dirtyFOXNews (blog) Kara DioGuardi Says There Is No Feud with Katy PerryTheCelebrityCafe.com Billboard -TheWrap -Atlanta Journal Constitution (blog) all 331 news articles »

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