North West is 3 years old today and her proud mum Kim Kardashian shared birthday greetings to her â€œfavourite mermaidâ€ on Instagram.
â€œShe promised me she wouldnâ€™t get any bigger. I canâ€™t believe my baby girl is 3 years old today!!!! Northie I love you so much I canâ€™t even explain it! Happy Birthday to my favorite mermaid!â€ gushed the 35-year-old reality TV star.