How Britney Spears Celebrated Her 34th Birthday

Family and friends surprised Spears with a party.

The pop star celebrated her big day with a surprise party thrown by friends and family, including sons Sean, 10, and Jayden, 9. Among the gifts were seven silver Mylar balloons that spelled Britney.

"Had the CUTEST surprise party today!!! A special thank you to Miss @MileyCyrus for sending these awesome balloons!" Spears shared on social media, alongside a snapshot.

Besides the sweets, the singer got a special catch of the day courtesy of her father Jamie.

Had the CUTEST surprise party today!!! A special thank you to Miss @MileyCyrus for sending these awesome balloons! ?? pic.twitter.com/6W7TmNBGeo

— Britney Spears (@britneyspears) December 3, 2015

Spears also showed off her special "teacup" cake and some sweet-looking cupcakes.

Thank you so much for all the birthday wishes today! I loved reading them just as much as I loved my teacup cake ?? pic.twitter.com/TsUdZe5p8K

Besides the sweets, the singer got a special catch of the day courtesy of her father Jamie.