Kim Kardashian is known for stealing the show with her flawless beauty, but she was caught without any makeup on when arrived to the Jay Leno Wednesday.

The 33-year-old Keeping Up With The Kardashians reality star pulled up to the New York studios in her black truck. Though she tried to hide her face and body with a cover that was supposed to block her from paparazzi, photographers caught a glimpse of Kardashian bare-faced and wearing some bedroom slippers. The new mom of baby North West looked like she just woke up from a nap, as her hair was made into a messy bun. (See photos here:)

Nonetheless, her makeup and wardrobe team polished her to perfection when she appeared on the show as she stepped out on stage dazzling in a sheer lace dress that exposed her black undergarments and fresh bronze make-up. She wore her blonde locks in loose curls and looked absolutely amazing when she told Jay Leno about her post-pregnancy weight loss.

She revealed that she is "50 pounds down" with the help of exercise and the Atkins diet. Kardashian also admitted that she was "hurt" by all the criticism of her her weight while she was pregnant.

"It really hurt my soul," she said. "It changed how I am in the public a little bit...There were these stories where I was, like, 200 pounds. I was gaining weight because I was pregnant and it was really hard to read all these stories and hear all these nasty things. And I think people sometimes question, they think I'm out 'in hiding' now."

Tags: Kim Kardashian Jay Leno