"X Factor" kicked off its first live show on Wednesday night with new hosts Khloe Kardashian and Mario Lopez, Demi Lovato debuting a new brunette look and the charm of Britney Spears dropping the word "amazing" multiple times throughout the show.

One of the highlights of Wednesday's show was Kardashian's see-through blouse that left her nipples show off.

"I think the air conditionning's on high tonight. It's very distracting," judge Simon Cowell said.

Demi Lovato also debuted a new brunette look although she had said before she wasn't planning to change her blonde hair.

Among the sixteen contestants fans of the show were raving about a few of them on Facebook including Janell Garcia, rap group Lyric 145, teenager singer Carly Rose Soneclar and Emblem3.

Each one of the judges will eliminate a contestant on Thursday night's show leaving 12 contestants in the competition.

The first live show was scheduled for November 1st but Fox broadcast it earlier leaving the first eliminations for Thursday night.

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