Singer Katy Perry performed her upcoming single “Firework” live on The X-Factor in London, England on Sunday (October 18)- watch video below. The 25 year-old, who wore a super tight sparkly catsuit, certainly did not deliver her best performance.

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Katy confessed she was a bit too nervous about performing in front of the judges. Katy tweeted, “Oh my gawd I was so nervous! Thanks #xfactor for making me feel like I was actually one of the contestants ”

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OK! Katy sounded awful… not exactly awful. She was incredibly nervous and didn’t sound like the super confident Katy we know, but at least she was singing LIVE and looked FABULOUS. Go Katy!

Katy Perry “Firework” Live on X-Factor Video Below