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Christina Aguilera Wows in First Post-Baby Performance of “Beautiful” at The Breakthrough Prize: Watch Now!

Now that is beautiful! Since the August birth of her baby girl Summer Rain, Christina Aguilera has been keeping a low profile, spending time with her newborn, her fiancé Matt Rutler, and her son Max, 6. But on Sunday, Nov. 9, the pop diva, 33, made her first official appearance at The Breakthrough Prize Awards, performing her hit 2002 single “Beautiful” for the audience. 

Related: PHOTOS: Christina's body evolution

The show airs Saturday, Nov. 15 at 6 p.m. ET on the Science Channel and the Discovery Channel, but here’s a clip of Aguilera’s stunning performance. Earlier in the evening she hit the carpet in a striking long-sleeve red gown with her fiancé by her side. 

Christina Aguilera
Christina Aguilera sings “Beautiful” at The Breakthrough Prize Awards on Nov. 9.

The “Fighter” singer, who recently signed on to season 8 of The Voice, has clearly slimmed down since giving birth this summer, looking fit and healthy throughout her performance.

Related: PHOTOS: Best celeb post-baby bodies

Seth MacFarlane hosted the event, which was founded by Facebook creator Mark Zuckerberg and brought scientists and celebrities together to raise millions for top scientists. Other stars in attendance were Kate Beckinsale, Benedict Cumberbatch, Cameron Diaz, Jon Hamm, and Eddie Redmayne

Related: PHOTOS: Before they were on The Voice

Watch the clip and tell Us what you think below!

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