Katy Perry :Performance on next week's American Idol

"Firework" Pop Star  Katy Perry lands an upcoming performance on next week's American Idol. Katy Perry will also be joined by Idol's season 7 winner David Cook.

According to USA Today Katy Perry will perform her hit Extraterrestrial (E.T.) while David Cook will perform his new single, The Last Goodbye.

Watch Katy Perry Video ::

Katy Perry : : Stolen beat from the Mafia

'Teenage Dream' singer said the idea for the song came from her producers "accidentally" playing her a beat they had designed for southern US hip hop group Three 6 Mafia.

She explained: "I remember writing with Max Martin and Dr. Luke, and they were just showing me different samples of songs or tracks or beats, and they accidentally pulled up this beat, and it was for Three 6 Mafia.


"I heard it and I always knew I wanted to write this futuristic, alienistic song, and I was like, 'Wait, I can wrap my head around this. I know this seems like a long shot, but I think I have the perfect material to put on top of this sound.' And I did, and it really worked out perfectly (sic)."

The single version of 'E.T.' which stands for Extra Terrestrial , features rapper Kanye West, and Perry  admits he helped bring out the track's "urban feel".

She added: "It's kind of a bit harder, it does have that urban feel underneath it. I think that's why Kanye added even another layer on top of it.

"And it has amazing sonics - I mean, there's so much to it, there's a lot in the song if you really put your headphones on and sink into the song."

Watch katy perry video ::(firework)

Katy Perry : LIKES "Born This Way" Album

"Fireworks"Singer Katy Perry may have had her quibbles with Lady Gaga's "Alejandro" video, but she sure seems to be a fan of her fellow pop star's new single.

During Lady Gaga's concert at Paris' Le Zenith on Monday (Mar. 7), Katy was captured on camera covering a portion of Gaga's "Born This Way," which is currently enjoying its third week at No. 1 on the Billboard Hot 100. 

Perry's version was more stripped down than the disco-reviving original, however, as the "Firework" singer was accompanied by two acoustic guitars.

Watch Katy Perry Video:(i kissed a girl)

Watch Katy Perry Video:(born this way)