Personalized Baby Grand Piano 3rd Birthday Youth T-Shirt. IT'S GRAND TO BE THREE! 3rd birthday Youth T-Shirt - Kelly Green with a bright and colorful funny faced baby grand piano and birthday balloons. 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.