Britney Spears' 35th Birthday Party Was the Stuff of Legends 

Britney Spears is 35 years old on Friday, and in related news: the rest of us are hella old, too! And hopefully we all look this good because IT\'S BRITNEY, BITCH:

Damn! Brit Brit looks like a million bucks, right?! And I like her little stomach cage thing, too — if I wore that, It\'d look like a dozen chunks of fat trying to escape from prison. Still sexy, but not quite the same!

The pop princess celebrated her 35th birthday at KIIS FM\'s Jingle Ball 2016 on Friday, December 2 at Los Angeles\' Staples Center. She pounced on the stage in a ~skimpy~ white lace crop top and some black short shorts to perform "Womanizer," "I\'m a Slave 4 U," "Toxic" and "(You Drive Me) Crazy."

Her final song of the night was her recent duet with Tinashe, "Slumber Party," and then Ryan Seacrest led the crowd in a "Happy Birthday" sing-along.

And damn, it looks like we missed the birthday part of the CENTURY:

Thank you for the sweet birthday wishes! Had an amazing day. Love you all 💖💖💖 #KIISJingleBall

Plus, her birthday cake was heart eyes emoji for daaaays:

Absolutely "In Love" with this BEAUTY😍😍. It was an Honor to provide the birthday cake for @britneyspears at the #jingleball2016 for @1027kiisfm. 🙏🏽#sweetredpeach #britneyspears #1027kiisfm #thankful #grateful #bestdedserts #bestcakes #inglewoodbakery #waittillthatstadiumgetsbuilt

And check out this sweet message from her lil\' sis\', Jamie Lynn:

A photo posted by Jamie Lynn Spears (@jamielynnspears) on

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