The Birthday Tour Continues
10/23/2011 6:00 AM PDT
One night after celebrating her 31st birthday
in New York City, Kim Kardashian
-- along with hubby Kris Humphries
, sister Khloe, brother-in-law Lamar Odom
, and BFF Mark Ballas
-- brought the party to Marquee nightclub in Las Vegas.
It's hard to keep up with a Kardashian on her birthday.