Christina Aguilera
Media playback is unsupported on your device
Video

Christina on Cher and Christmas

Singer Christina Aquilera stars in a new film called Burlesque alongside singer and actress Cher.

The 29-year-old spoke to BBC Reporter Sophie van Brugen about the film and her performance with X Factor finalist Rebecca Ferguson on Saturday's final.

Go to next video: Aguilera joins Walk of Fame