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_27615445_1 (audition_city VARCHAR, episode_air_date VARCHAR)
### Question:
How many audition city's are there with an episode air date of June 24, 2010?
### Answer:
SELECT COUNT(audition_city) FROM table_27615445_1 WHERE episode_air_date = "June 24, 2010"