November 10, 2014 09:00 AM

Consider this the reason we’re making it to spin class tonight.

Three months after welcoming daughter Summer Rain with fiancé Matthew Rutler, Christina Aguilera returned to the red carpet on Sunday night in a curve-hugging red dress.

With Rutler on her arm, the hot mama took a break from diaper duty for Sunday’s Breakthrough Prize award ceremony in Mountain View, California, where her jaw-dropping post-baby body stole the spotlight.

Steve Jennings/Getty

Not that this is the first time Aguilera, 33, who’s also mom to son Max Liron, 6½, has left us inspired in recent months.

“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,” she told V in August after showing off her bump in a nude photo series for the magazine.

— Alison Schwartz


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