Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_2560677_1 (artist_s_ VARCHAR, start_date VARCHAR)
### Question:
How many artist(s) have a start date is 1966-12-12?
### Answer:
SELECT COUNT(artist_s_) FROM table_2560677_1 WHERE start_date = "1966-12-12"