How many artist(s) have a start date is 1966-12-12?
CREATE TABLE table_2560677_1 (
    artist_s_ VARCHAR,
    start_date VARCHAR
)
SELECT COUNT(artist_s_) FROM table_2560677_1 WHERE start_date = "1966-12-12"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many artist(s) have a start date is 1966-12-12? ### Input: CREATE TABLE table_2560677_1 (
    artist_s_ VARCHAR,
    start_date VARCHAR
) ### Response: SELECT COUNT(artist_s_) FROM table_2560677_1 WHERE start_date = "1966-12-12"