Prettying up for promotional duties, Kim Kardashian was seen leaving her NYC hotel for an appearance on the "Late Show with David Letterman" on Thursday (October 1).

The E! reality beauty was decked out in a sexy grey dress, posing for pictures before making her way to the Ed Sullivan Theater.

Meanwhile, Miss Kardashian recently came to the defense of sister, Khloe, denying claims that her wedding with Lamar Odom was staged.

"I really hate all the crazy things I have been hearing regarding their wedding not being real," Kim wrote in a blog entry. "That is just crazy and untrue!!! Let Mr. and Mrs Odom enjoy being newlyweds! They are sooo freakin cute together! I love them and am so happy for them!"

Enjoy the pictures of Kim Kardashian out for her Late Show appearance (October 1).