The queen of pop just turned 34, and she celebrated her big day on Wednesday with a surprise party thrown by her family and friends, including her two young sons.
The best present she received had to be from Miley. Homegirl straight up hooked it up!
"Had the CUTEST surprise party today!!! A special thank you to Miss @MileyCyrus for sending these awesome balloons!" the birthday girl shared on social media.
The twerking singer sent seven silver mylar alphabet balloons spelling out "Britney" to her friend, whom Miley has called "one of her go-to people for advice."
That wasn't the only special thing that went down on Brit Brit's birthday. She also posted a picture of her father Jamie proudly showing off his large fish-catch.
Happy birthday, Brit!