She's still got it!

Christina Aguilera is now a mother of two but showed that she could still bring the house down with her pipes as she made her first official appearance at The Breakthrough Prize Awards to perform her 2002 hit Beautiful. We knew she had it in her!

The 33-year-old singer also stunned in a long-sleeved red gown while fiancé Matt Rutler, son Max and her new baby girl Summer Rain along with the rest of the audience watched in awe.

Xtina has kept things low key since Summer's birth in August but clearly she's on top of her game. She's lost the baby weight and has signed on to season 8 of The Voice for good measure. Things are looking up!

Check out a clip of Christina's performance above and watch the Breakthrough Prize Awards in its entirety when it airs Saturday, Nov. 15 at 6 p.m. ET on the Science Channel and the Discovery Channel.