GARDINER — Johnson Hall Performing Arts Center on Water Street will host Our 150th Birthday Party at 7 p.m. Saturday, Dec. 6. This is a free event, open to the public.

A birthday cake competition will start off the festivities, so this is your chance to show off what you can do. Prizes will be given for best flavor, best looking, people’s choice, youth creation, and most creative. The Grand Prize will be a season’s pass to Johnson Hall.

Interested bakers should contact Johnson Hall to get an application form, visit the Johnson Hall website or stop by and pick one up.