Thursday, April 8, 2010 7:39am ET by  

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Rihanna excited on 'American Idol'

Rihanna has revealed her excitement at her first performance on American Idol.

The singer performed new track 'Rockstar 101' - taken from her 'Rated R' album - on the Fox competition's Top 9 results show last night. Speaking to ET Online before her appearance, she said, "It's really exciting. They are now loading the audience in and everybody is so excited! It's my first time performing on Idol and it's a little nerve-wracking because we're in the middle of our tour rehearsals and it's a really time-demanding experience and we just had to fit this in there." She added, "We just came up with what we are going to do right here right now!"

Rihanna kicks off her 'Last Girl On Earth' tour in Seattle later this year.