We can always count on this singer to bring the crazy!
Last night, she showed off her electric-blue lipstick (along with her bone-and-feather earrings) before taking the stage at an NYC bash.
Think you know which pop star's feeling blue? Find out after the jump...
It's Ke$ha, at Casio's Shock the World party.
She's the new ambassador of the watch line and performed some new songs last night, as well as her crowd-pleasing hit single "Tik Tok."
What do you think of her unique style?
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