Gr. 9, 10 and 11 Boys and Girls may enter the competition as debutants. A rigorous screening process takes place where after only 10 to 15 boys and girls are chosen as debutants for the final competition. The debutants are responsible for fund raising for the school and also a community project of their own choosing. They may work together in groups of up to 3 competitors. The community project is judged and a winner determined who contributed most to the upliftment of the community.

Participation in Mr & Miss Callies is an opportunity for the development of skills and positive self esteem while having fun together.

There are multiple category winners, for the girls; Miss Callies, 1st Princess, 2nd Princess, Miss Photogenic, and Miss Personality. The same categories apply for the boys; Mr. Callies, 1st Prince, 2nd Prince, Mr Photogenic and Mr Personality.

A Guest celebrity acts as master of ceremonies during the occasion and is a highlight on our school calendar. This year this event will take place in the first week of September.