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Christina Aguilera

Christina Aguilera is one hot mamma!

The new mom is making her way back on stage for a good cause. She was on hand at Sunday's Breakthrough Prize Awards in Mountainview, California, supporting the work of some of the country's finest scientists. 

Christina, who welcomed her daughter Summer back in August, stunned on the red carpet in a red gown with a plunging neckline. 

Forbes says the singer performed her 2002 hit "Beautiful" for a guest list that included billionaires like Facebook founder Mark Zuckerberg and Hollywood stars like Cameron Diaz and Benedict Cumberbatch. Seth MacFarlane hosted the event at the NASA Ames Research Center.  

Since giving birth, Christina has also been teasing new music on the way.  She tweeted out another photo from inside the recording studio last week.  

Photo: Getty Images