SquareZ
1. Beginning dancer. Knows nothing.
2. Intermediate dancer. Knows everything. Too good to dance with beginners.
3. Hotshot dancer. Too good to dance with anyone.
4. Advanced dancer. Dances everything. Especially with beginners.
--Dick Crum
Calling Ideas for May 19, 2012

This is:

Frog Jumping Jubilee Day
In 1928, the first jumping frog contest was held in Calaveras County, California. See my original comments here.

You can break out your frog songs: "Joy to the World" ("Jeremiah was a bullfrog") and "Froggy Went a Courtin'". You could even change the words to "froggy went a jumpin'". Dancers probably wouldn't appreciate frog legs as a snack, however.