Actually Kesha can play a lot of different instruments. I remember it being listed somewhere
Guitar
Piano/Keyboards
Theramin
Laser Harp (It was something of that name)
Cowbell
Drums
Penis.
Queen of being a singer-songwriter, rapper, actress, kitchen appliance, multi-instrumentalist, plantiff, video director, Hungarian, gay rights activist, 5'8, a person with a dollar sign in her name, background vocalist, and daughter
