Kim Kardashian Fails at Booty 101

I need Booty 101.

Probably the last words we'd ever expect to hear from Kim Kardashian, with the exception of: "Ray J, turn that camera off and come do me!"

Still, Kim was worried last night about her booty-shaking abilities for the Mambo. Turned out she had reasons for concern.

Her and partner Mark Ballas only managed 18 total points for their version of the dance. Check out the performance now (set, hilariously, to "Baby Got Back"):