She doesn't look a day over 30, but Hello Kitty ... a 50th Birthday Cookie Sandwich, 50th Anniversary Cake and a Sparkling 50th Drink (strawberry soda with coconut cream foam on top).

Kim Kardashian celebrated daughter Chicago's 5th birthday with a massive Hello Kitty-themed bash ... Kim Kardashian Goes All Out on Pretty Pink Hello Kitty Cake for Daughter Chicago's 5th Birthday.