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Christina Aguilera, Instagram

Instagram

Well hello there, Christina Aguilera!

Friday marked the singer's 35th birthday where fans around the world were quick to wish the proud mom a happy day.

But as Friday night came around, the "Beautiful" singer decided to heat thinks up with a little black dress and special message to her fans.

"Thank you for all the Bday wishes!!" she wrote on Instagram with knee-high boots and bright red lipstick completing her look. "Love you my #fighters! Xo Xtina."

And to think this pop superstar is a mother to two kids? Impressive if we do say so ourselves.                   

Christina Aguilera, Christmas 2015

Instagram

While her birthday plans remain a secret, some members of The Voice couldn't help but celebrate online. Fellow coach Pharrell Williams shared a throwback picture backstage with a compliment included.

"Happy birthday to the queen @Xtina," he wrote online. Newly crowned Voice winner Jordan Smith even gave the singer a special solo performance. Ummm, jealous!

As for 2016, it's safe to say the blond beauty has a lot up her sleeves. After appearing on Saturday night's Home for the Holidays special on CBS, the singer will return to The Voice for season 10.

She will rejoin her fellow coaches and friends Adam Levine, Blake Shelton and Williams. "Get ready boys," Aguilera wrote on Instagram after the official announcement. "Mama's comin' back........ #TheVoice #Season10."

(E! and NBC are part of the NBCUniversal family)