Kim Kardashian celebrates her 31st birthday with husband Kris Humphries, Kourtney Kardashian, Scott Disick, La La Anthony and other friends at The Darby in New York City.

Kim Kardashian celebrates her 31st birthday with husband Kris Humphries, Kourtney Kardashian, Scott Disick, La La Anthony and other friends at The Darby in New York City.

Kim Kardashian celebrates her 31st birthday with husband Kris Humphries, Kourtney Kardashian, Scott Disick, La La Anthony and other friends at The Darby in New York City.

Kim Kardashian celebrates her 31st birthday with husband Kris Humphries, Kourtney Kardashian, Scott Disick, La La Anthony and other friends at The Darby in New York City.

Kim Kardashian celebrates her 31st birthday with husband Kris Humphries, Kourtney Kardashian, Scott Disick, La La Anthony and other friends at The Darby in New York City.

Kim Kardashian celebrates her 31st birthday with husband Kris Humphries, Kourtney Kardashian, Scott Disick, La La Anthony and other friends at The Darby in New York City.

Kim Kardashian celebrates her 31st birthday with husband Kris Humphries, Kourtney Kardashian, Scott Disick, La La Anthony and other friends at The Darby in New York City.