Christina Aguilera hit her first red carpet since filing for divorce last night -- where the only person on her arm was Cher.
Aguilera stepped out to the premiere of her film debut, "Burlesque," in an emerald green empire waist silk chiffon gown from Elie Saab ... and she did it without a date.
Check out the gallery for a closer look at the stars' flawless makeup -- plus shots of Cam Gigandet, Eric Dane, Chaz Bono, Julianne Hough, Ryan Seacrest and more!
"Burlesque" opens on Thanksgiving.
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