Scherzinger warmed to Cowell on 'X Factor'

Nicole Scherzinger worried she was going to "suck" when she appeared on 'The X Factor'.

The US singer - who is rumoured to become a panellist on the US version of the show when it starts next year - said she wouldn't usually consider appearing on such a show, but after working on the auditions and Boot Camp stages of the UK version, she may be open to suggestions.