Today marks Kim Kardashian and Kanye West's oldest daughter's fifth birthday. Paparazzi caught the young cutie hanging in New York looking happier than ever on her dad's shoulders cruising down the streets. North's best friend, Ryan (Tracy Romulus' daughter) was also spotted with North and Kanye along for the ride - see the pics here

Kim took to Instagram today to share a special message about her daughter, adding in a little joke asking whether North will now be nice to her brother, Saint. 

"My baby girl turns 5 today. Never did I think back then that I would have my best friend for life! I’m so honored to be your mom Northie! You have brought more joy into my world than I ever could have imagined," she said. "I can’t believe your so big now! The luckiest girl in the world to be best friends with your cousins and have the most magical parties together! I love you so much birthday girl! P.S. Now that you’re 5, don’t you think it’s the mature thing to try to be nice to your brother now!?!"