Christina Aguilera thinks Britney Spears will be a "great" 'X Factor' judge and says she wishes her chart rival well in her new role.

Christina Aguilera thinks Britney Spears will be a "great" 'X Factor' judge.
 
The 'Fighter' hitmaker - who is also a coach on singing contest 'The Voice' - wishes her former 'All-New Mickey Mouse Club' co-star well in her new role on the rival talent search show.

She said: "I came up with Britney. 'Mickey Mouse Club', we were very close. Our paths have always crossed and they continue to cross. I welcome her to this family of fun and entertainment and finding new talent.
 
"I don't know what she's going to offer specifically, but I know she's a pro and she's going to give, I think, great advice."
 
As well as Britney and Demi Lovato being appointed to the 'X Factor' panel, Mariah Carey was recently announced as a new judge on 'American Idol' and Christina thinks it is great to have so many women in such high-profile roles.