CREATE TABLE table_64442 ("Date ( s ) " TEXT, "Venue" TEXT, "City" TEXT, "Ticket price ( s ) " TEXT, "Ticket sold / available" TEXT, "Ticket grossing" TEXT)

What was the ticket price at Red Rocks Amphitheatre?
SELECT "Ticket price(s)" FROM table_64442 WHERE "Venue" = 'red rocks amphitheatre'
SELECT "Ticket price(s)" FROM "table_64442" WHERE "Venue" = 'red rocks amphitheatre'