Check Out the First Photo of Christina Aguilera's Incredible Post-Baby Body

Christina Aguilera is showing off her post-baby body.

At Sunday night's Breakthrough Prize Awards, the Voice coach walked the carpet in a bright red, plunging, long-sleeved dress. The singer gave birth to her second baby, Summer Rain, in August.

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Aguilera also performed her hit "Beautiful" at the event, which honored pioneers in math and science. Her fiancé, Matthew Rutler, was also by her side during the night.

The 33-year-old isn't shy when it comes to showing off her bod. Earlier this year Aguilera posed nude while pregnant forV Magazine saying, "As a woman, I'm proud to embrace my body through all stages of life, staying fearless and confident in surrendering to the unknowns the future has in store."

See the photo here.

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