Personalized 4th Birthday Princess Girls Crown Youth T-Shirt. Cute crown with number 4 and this little princess is four quote on a 4th Birthday Youth T-Shirt - Purple. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.