CHECK OUT KE$HA'S SENIOR HIGH-SCHOOL YEARBOOK PICS ...
On her high school days, Ke$ha dressed up as Spice Girl Geri Halliwell in her famous Union Jack dress and pretended to be Ginger Spice for a performance during her senior year at Brentwood High School in Tennessee.
She told the school's yearbook that being Ginger was "very humiliating... but very funny".
There's also a caption beside another picture of her holding a microphone and singing that says: "I've been singing forever and I write my own music that I sing. My hero is Frank Black of the Pixies because he's a musical genius."
Ke$ha was also on the high school's newspaper and there's a pic of her checking out a new camera.