The pop star — who broke out alongside Spears on “The Mickey Mouse Club” and during the late 1990s teen-pop boom

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Christina Aguilera Tells Jimmy Kimmel She Doesn't know Whether She Needs to Make an Appearance in Britney Lances' Diary

The singer also described her family's outrageous Halloween set-up and her intimate Las Vegas residency in Monday night's (Oct. 16) interview.

"It's a particularly imaginative encounter for me, not at all like anything I've at any point finished," the star told the host. "Since it's such an extremely unique, selective [show], as just 1000 seats each evening and I'm not on until late

For her next act Christina Aguilera is embarking on her own Las Vegas residency, and she’s given her look a total refresh for the occasion. The “Beautiful” singer is no stranger to reinvention, after all.