Kim Kardashian Celebrates North West's 4th Birthday With Heartwarming Video

Kim Kardashian paid tribute online to her "mini-me" daughter North West for the child's fourth birthday Thursday.

The 36-year-old Keeping Up With the Kardashians star posted on her website and YouTube a heartwarming video of the two that shows past clips of them together, some from Snapchat.

"Are you not going to get any bigger?" Kim asks her daughter, the eldest of her and husband Kanye West's two kids. "You're not going to get any taller. I want you to stay little forever, okay?"

"Okay," North says.