Watch: Paula Abdul Kisses Up to Simon Cowell on 'The X Factor'

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A sweeter side of Simon Cowell emerges on 'The X Factor.' Without a minimum or maximum age, Simon is judging very young children for the first time in front of American audiences.

Rather than being the snarky persona fans grew accustomed to during his reign on "American Idol," Simon seems to side with Paula by finding the positive in pee-wee singers. It's L.A. Reid that comes up with critical one-liners.

Watch "The X Factor" high-concept promo featuring panelists Simon, Paula, L.A., and Nicole Scherzinger, along with host Steve Jones. One-time judge Cheryl Cole is noticeably absent. "The X Factor" makes its U.S. debut on Wednesday, September 21 on Fox.