Katy Perry Goes Extraterrestrial on American Idol

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With an assist from Kanye West, Katy Perry brought her futuristic new single "E.T." to American Idol last night - skin-tight LED-laden bodysuit and all.

Performing her new hit song, the singer warbled her way through the pop song as she was surrounded by dancers dressed in alien-inspired costumes.

Much like the "E.T." music video, Katy embodied the outer-space theme, carried onto the stage by her alien dance troupe at the start of the song.

The studio audience, who also saw David Cook perform last night, was surprised to see West joining Katy on stage for his verse. Here's their duet:

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American Idol Quotes

Brooke White's tears come from the authentic, good soul that she is. Her heart was breaking because she was overwhelmed with the experience she had with the show and the gift that it brought.

Paula Abdul [after Brooke White was eliminated on season seven]

I read some of this online this morning and just for the record, the rumors — they’re not true. She’s part of our family and we love her.

Ryan Seacrest [on rumor of Paula Abdul being drunk on the show]