It turns out these two chanteuses get along famously, and these lovely ladies tell us everything from what attracted them to the movie to their most uncomfortable moment during filming.
For Aguilera, 'Burlesque' has additional importance as her feature film acting debut -- which she made alongside cinema heavyweights Cher and Stanley Tucci. She reveals she was at once both nervous and excited to undertake such a daunting project. But as Cher tells us, Aguilera wasn't the only one learning on set.
And no interview with Cher is complete without talking about THOSE clothes. Watch to hear Cher describe her favorite outfit -- which she wore to retaliate against the Academy when it didn't nominate her for Best Actress for 'Mask.'
'Burlesque' trailer and more info
'Burlesque' Fan Questions
Christina:You said in the past that you wanted to pick the right movie as your first film. What made you choose 'Burlesque'?
Cher:All of the actors in the film say they've learned something from you, but has working with this cast taught you anything new?
Chris:What's the best gift you have ever received from a fan?