Showing some style as she celebrates her 31st birthday, Krysten Ritter headed to the Bank Nightclub at the Bellagio Hotel and Casino in Las Vegas on Saturday (December 15).
The "Don't Trust the B---- in Apartment 23" star hit up Sin City in a long-sleeved black sparkling dress with black heeled boots.
After the birthday bash, Krysten retweeted a photo of herself being presented her cake with the comment, "Up 2 late!"
The dark-haired beauty shared lots of her weekend festivities with her Twitter followers, from the party bus, to the birthday dinner, to the club.
Enjoy the pictures of Krysten Ritter celebrating her 31st birthday at Bank Nightclub in Las Vegas (December 15).
Photo Credit: PacificCoastNewsOnline.com