Making for quite the active evening, Kim Kardashian tended to a full schedule of happenings in New York City on Friday night (December 10).
The E! reality star kicked things off by joining Simon Huck and Jonathan Cheban at the Beauty & Essex Grand Opening event.
Changing up outfits, Miss Kardashian later ventured over to Madison Square Garden for an appearance at Z100's Jingle Ball 2010 - during which she made sure to take time and pose for a few pictures alongside Justin Bieber.
After wrapping up her Z100 duties, Kim and her latest potential beau - NJ Nets basketball player Kris Humphries - paired up to head to the Provocateur lounge, where they stayed until 1:45AM before trekking back to Kardashian's hotel.