Reality television personalities Spencer Pratt and Heidi Montag attend Pure Nightclub on February 13, 2010 in Las Vegas, Nevada.

Holly Montag had a birthday party at The Bank nightclub at the Bellagio Hotel Sunday night. She's seen her partying with her closest friends Lindsy Browder and Stacie Hall.  I guess Holly's sister Heidi Montag is too A list to show up for her sisters soiree.