The "Beautiful" singer flaunted her killer curves on the red carpet at the 3rd Annual Breakthrough Prize Awards on Sunday night, showing some crazy cleavage in a plunging black gown with gold embellishments along her waist. She let the show-stopping look speak for itself and accented the revealing gown with a pair of dangling diamond earrings and tousled waves.
The pop star was at the event to hand out an award to Russian entrepreneur Yuri Milner, one of the top inventors who has contributed in scientific advance in the areas of Life Sciences, New Horizons in Physics and Physics Frontiers.
We haven't seen Xtina hit the red carpet in months, and she didn't disappoint!
The mother-of-two has been busy filming Season 9 of "The Voice." Over the weekend, she spent time with her NBC costars during a fun "family" dinner.
The large group posed over a meal of pasta and lots of red wine in a photo posted to Aguilera's Facebook.
"Dinner with @nbcthevoice family! U boys are the best brothers a girl could have," she captioned the cute candid with Blake Shelton, Adam Levine, Behati Prinsloo, Carson Daly and more. Missing in action: Blake's new girlfriend (and alternate show judge) Gwen Stefani.
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