Marc Malkin

Denise Truscello/WireImage.com

Does Paris Hilton ever take a night off?

The hotel heiress hit Las Vegas this weekend to shoot her upcoming search for a best friend reality show and to do what she does best—party!

First up? Tao on Friday night with boyfriend Benji Madden, sister Nicky and her longtime beau David Katzenberg, along with several contestants from the show. They reportedly spent a couple of hours dancing before heading to the Mirage to hang with Vegas personality Jeff Beacher.

The Hilton posse made its way to a party in a Mirage suite around 3 a.m., where they were said to have enjoyed a food spread prepared by CatHouse and Simon restaurants chef Kerry Simon. On the menu? An assortment of sushi and Simon's signature “junk-food platter” of cupcakes, Fruit Loops treats and cotton candy.

The following evening, Hilton & Co. popped into the Bank nightclub at the Bellagio for nightlife promoter and actor Danny A’s birthday party.

“Benji was holding her up as they were escorted in by security,” a source reports. “And then she gave the onlookers a good show when she danced on the raised banquettes.”

There were no MTV cameras trailing them this time around. In fact, Hilton's security detail was trying hard to make sure no one got a shot of the fun-loving missy before she left around 3:30 a.m. The source says, “They actually took several cameras away from people and deleted photos."

Who else was out and about in Vegas this weekend? Click my videoblog below to find out.