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Britney spent her 35th birthday by getting to work, bitch!
The princess of pop took the stage at the annual Jingle Ball concert held at the Staples Center in L.A. Friday night.
PHOTOS: Watch Britney Spears Perform At Jingle Ball In L.A.
Brit and her backup dancers championed through a string of numbers she performs at her Piece Of Me residency in Las Vegas, including "Work Bitch," "Womanizer," "Slave," "Do You Wanna Come Over?," "Make Me," "Toxic," "Stronger," "Crazy" and "Slumber Party" with Tinashe.
Following the performance, Ryan Seacrest surprised the Glory singer with an extravagant cake to celebrate her bday.
Swipe through a collection of photos and videos from Jingle Ball above.
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