CREATE TABLE table_29662 ("Episode Air Date" TEXT, "Audition City" TEXT, "Audition Date" TEXT, "Audition Venue" TEXT, "Guest Fourth Judge" TEXT)

How many audition city's are there with an episode air date of June 24, 2010?
SELECT COUNT("Audition City") FROM table_29662 WHERE "Episode Air Date" = 'June 24, 2010'
SELECT COUNT("Audition City") FROM "table_29662" WHERE "Episode Air Date" = 'June 24, 2010'