The Birthday Honk-Honker ("" Wake Up! For today is your Day of all Days"") and the Great Birthday Bird (""Come on! Brush your teeth and get dressed! It's your Day of all Days! It's the Best of the Best!"") get the party started in Dr. Seuss's 1959 classic Happy Birthday to You!, now available in a handsize, pop-up edition. Fun paper engineering adds even more energy to Seuss's signature illustrations.