CREATE TABLE table_29529 ("Episode air date" TEXT, "Audition city" TEXT, "First audition date" TEXT, "Audition venue" TEXT, "Callback audition date" TEXT, "Callback venue" TEXT, "Golden tickets" TEXT)

When were the callback auditions for the audition city in the episode aired on February 9, 2011?
SELECT "Callback audition date" FROM table_29529 WHERE "Episode air date" = 'February 9, 2011'
SELECT "Callback audition date" FROM "table_29529" WHERE "Episode air date" = 'February 9, 2011'