It's Just Movies

— by KATHLEEN COLLINS —

Here is Christina Aguilera performing “I’m a Good Girl” in an extended musical number from “Burlesque.”

“Burlesque” — which also stars Cher, Eric Dane, Cam Gigandet, Stanley Tucci, Alan Cumming, Peter Gallagher and Kristen Bell — will be released Nov. 24.

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Follow Kathleen Collins on Twitter at http://twitter.com/Super_Kathleen.