Kristin Cavallari held her 24th birthday bash at The Bank in Las Vegas on Saturday wearing a really sparkly gold sequined dress. What do you think of the former "Hills" star's cocktail attire?

The party was actually a belated bash for the reality star, who actually turned 24 on January 5.

Prior to heading to her party she tweeted, "Already a hectic morning...here we come vegas!"

Click for more great Kristin Cavallari pictures: