CREATE TABLE table_25659 ("Season" TEXT, "Episodes" FLOAT, "Series premiere" TEXT, "Series finale" TEXT, "Winning couple" TEXT, "Winning profit  (  AUD  ) " TEXT, "Host ( s ) " TEXT, "Judges" TEXT)

How many series premieres did the season 'All-stars' have?
SELECT COUNT("Series premiere") FROM table_25659 WHERE "Season" = 'All-Stars'
SELECT COUNT("Series premiere") FROM "table_25659" WHERE "Season" = 'All-Stars'