In this series, every day is a celebration. Each episode will focus on an event that is important and familiar in the pre-schoolers' world, with a strong focus on birthdays. Celebrations often involve gatherings of family and friends. Along with gifts, games and special food, birthdays also mark physical, mental and social growth. Turning another year older often means sharing in a special celebration, a birthday meal or party, or a cake. It is also a chance for children to plan their important day and express their creativity through the design of party invitations, games and decorations. Join the presenters and some special guests as they get ready for all sorts of celebration activities. Eddie becomes the piano-playing Mr Honky Tonk, solving problems with a song. Teo makes some mud cakes for a Mud Cake Bakery. Emma and Michelle create surprise pictures. We also welcome a special new addition to Play School, Joey the joey! Through the windows we explore what kinds of things make children happy - colours, pets, being together, going to the beach and their own backyard. Come and play and sing hip hip hooray with Play School as this series also celebrates Play School's 50th Anniversary!