Style before comfort isn't always the best mantra when you're dressing a four-year-old for her birthday party!

Kim and Kanye's daughter Nori certainly looked adorable on her big day yesterday but she appeared to be slightly uncomfortable in her Moana costume as she celebrated her big day at a Polynesian-themed party based on the Disney movie in the back yard of her family's Bel Air home.

Cousin Penelope looked a bit happier -- and how cute is that long, brunette wig! She posed with Kim's pal Larsa Pippen's daughter in the living room of Kim and Kanye's manse.

Meanwhile, Kourtney enjoyed the surf simulator/bouncy and famous friends like Jaden Smith attended, arriving hand-in-hand with one of his bros. Hmmm ...

Anyway, the family was all there and North West had TWO cakes for the occasion. Despite the scratchy leaf crown, we hope little North had some fun!