Katy Perry on 'American Idol'...

Katy Perry had the headline spot on 'American Idol' last night. Katy belted out new hit 'E.T.' which was her fourth number one from album 'Teenage Dream'. The 'I Kissed A Girl' singer showed up in a light up body suit with dancers who were also oddly dressed for the occasion.

Read more and watch after the jump...

Hip-Hop star, Kanye West who is featured on the song made an appearance for the second segment of his rap. He wore an odd leather/fur coat fyi. Check out the performance below and tell us what you think...



- JUiC3R.