The socialite turned 31 on Friday and celebrated with her friends and family in New York at Manhattan hotspot The Derby, where she was treated to a surprise performance by pop star Pink, who sang The Fugees' Killing Me Softly, according to EOnline.com.
Kardashian was also celebrating a career milestone, after announcing to fans that day that she has been offered a role in Perry's new movie The Marriage Counselor.
In a post on her Twitter.com page, the reality TV star told fans, ""Big news!! I'm co-starring in Tyler Perry's new movie!""
Kardashian has previously acted in films including Deep in the Valley and Disaster Movie, but will reportedly play a more substantial role in The Marriage Counselor.