X Factor 2010: Fears for Matt Cardle as he loses voice and is forced to pull out of official gig

http://www.youtube.com/watch?v=YxOLgTGzkAQendofvid[starttext]By LIZ THOMASConcerns: X Factor semi-finalist Matt Cardle was unable to perform at a secret gig put on by the show's sponsor Talktalk last night because he had lost his voice One Direction star Zain Malik also forced to pull out for 'personal reasons'X Factor favourite Matt Cardle sparked fears for his health ahead of the semi-finals