<P> The original judging panel consisted of Cowell , Paula Abdul , Cheryl Cole and L.A. Reid , with Nicole Scherzinger and Steve Jones as co-hosts . Scherzinger later replaced Cole on the panel after two audition sites . Demi Lovato and Britney Spears joined the panel in the second season as replacements for Abdul and Scherzinger , while Khloé Kardashian and Mario Lopez replaced Jones as co-hosts . Spears and Reid did not return for the third season and were replaced by Kelly Rowland and Paulina Rubio , while Lopez became sole host after Kardashian was not asked to come back . </P>
<P> The original judging panel consisted of Cowell , Paula Abdul , Cheryl Cole and L.A. Reid , with Nicole Scherzinger and Steve Jones as co-hosts . Scherzinger later replaced Cole on the panel after two audition sites . Demi Lovato and Britney Spears joined the panel in the second season as replacements for Abdul and Scherzinger , while Khloé Kardashian and Mario Lopez replaced Jones as co-hosts . Spears and Reid did not return for the third season and were replaced by Kelly Rowland and Paulina Rubio , while Lopez became sole host after Kardashian was not asked to come back . </P>
who is the host of the x factor
who is the host of the x factor
Mario Lopez
Mario Lopez